Infineon XDPP1100 User Manual
Infineon XDPP1100 User Manual

Infineon XDPP1100 User Manual

Pmbus command set
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UM_2106_PL88_2107_203235
XDPP1100 PMBus command set
About this document
Scope and purpose
This document describes all the PMBus commands supported by the
controller.
Intended audience
The user manual is intended for XDPP1100 users.

Table of contents

About this document ....................................................................................................................... 1
Table of contents ............................................................................................................................ 1
1
PMBus commands - standard .................................................................................................. 5
1.1
00h - PAGE ............................................................................................................................................... 5
1.2
01h - OPERATION .................................................................................................................................... 5
1.3
02h - ON_OFF_CONFIG ........................................................................................................................... 5
1.4
03h - CLEAR_FAULTS .............................................................................................................................. 6
1.5
10h - WRITE_PROTECT ........................................................................................................................... 6
1.6
11h - STORE_DEFAULT_ALL ................................................................................................................... 7
1.7
12h - RESTORE_DEFAULT_ALL ............................................................................................................... 7
1.8
15h - STORE_USER_ALL .......................................................................................................................... 7
1.9
16h - RESTORE_USER_ALL ..................................................................................................................... 7
1.10
17h - STORE_USER_CODE ...................................................................................................................... 8
1.11
18h - RESTORE_USER_CODE .................................................................................................................. 8
1.12
19h - CAPABILITY ..................................................................................................................................... 8
1.13
1Bh - SMBALERT_MASK .......................................................................................................................... 8
1.14
20h - VOUT_MODE .................................................................................................................................. 9
1.15
21h - VOUT_COMMAND ........................................................................................................................... 9
1.16
22h - VOUT_TRIM .................................................................................................................................. 10
1.17
23h - VOUT_CAL_OFFSET ..................................................................................................................... 10
1.18
24h - VOUT_MAX ................................................................................................................................... 10
1.19
25h - VOUT_MARGIN_HIGH .................................................................................................................. 11
1.20
26h - VOUT_MARGIN_LOW ................................................................................................................... 11
1.21
27h - VOUT_TRANSITION_RATE ........................................................................................................... 11
1.22
28h - VOUT_DROOP .............................................................................................................................. 11
1.23
29h - VOUT_SCALE_LOOP .................................................................................................................... 12
1.24
2Bh - VOUT_MIN .................................................................................................................................... 12
1.25
32h - MAX_DUTY .................................................................................................................................... 12
1.26
33h - FREQUENCY_SWITCH .................................................................................................................. 12
1.27
34h - POWER_MODE ............................................................................................................................. 12
1.28
35h - VIN_ON ......................................................................................................................................... 13
1.29
36h - VIN_OFF ........................................................................................................................................ 13
1.30
37h - INTERLEAVE ................................................................................................................................. 13
1.31
39h - IOUT_CAL_OFFSET ...................................................................................................................... 14
User Manual
www.infineon.com/xdpp1100
Please read the Important Notice and Warnings at the end of this document
XDPP1100
page 1 of 61
digital power supply
2021-06-18
V 1.0

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Summary of Contents for Infineon XDPP1100

  • Page 1: Table Of Contents

    This document describes all the PMBus commands supported by the XDPP1100 digital power supply controller. Intended audience The user manual is intended for XDPP1100 users. Table of contents About this document ........................1 Table of contents ..........................1 PMBus commands – standard ....................5 00h –...
  • Page 2 XDPP1100 PMBus command set PMBus commands – standard 1.32 40h – VOUT_OV_FAULT_LIMIT ......................14 1.33 41h – VOUT_OV_FAULT_RESPONSE ..................... 14 1.34 42h – VOUT_OV_WARN_LIMIT ....................... 15 1.35 43h – VOUT_UV_WARN_LIMIT ....................... 15 1.36 44h – VOUT_UV_FAULT_LIMIT ......................15 1.37 45h – VOUT_UV_FAULT_RESPONSE ..................... 15 1.38...
  • Page 3 XDPP1100 PMBus command set PMBus commands – standard 1.83 8Dh – READ_TEMPERATURE_1 ......................31 1.84 8Eh – READ_TEMPERATURE_2 ......................31 1.85 90h – READ_FAN_SPEED_1 ........................31 1.86 91h – READ_FAN_SPEED_2 ........................32 1.87 94h – READ_DUTY_CYCLE ........................32 1.88 95h – READ_FREQUENCY........................32 1.89...
  • Page 4 XDPP1100 PMBus command set PMBus commands – standard 2.23 FEh MFR_FIRMWARE_COMMAND ......................54 Patched commands ....................... 56 3Ah – FAN_CONFIG_1_2 ........................56 3Bh – FAN_COMMAND_1 ........................56 3Ch – FAN_COMMAND_2 ........................57 81h – STATUS_FANS_1_2 ........................57 C7h – MFR_FREQUENCY_DITHER......................57 CCh –...
  • Page 5: Pmbus Commands - Standard

    XDPP1100 PMBus command set PMBus commands – standard PMBus commands – standard 00h – PAGE The page command provides the ability to configure, control and monitor through only one physical address either: - multiple outputs on one unit, or - multiple non-PMBus devices through a PMBus device to non-PMBus device adapter or bridge.
  • Page 6: 03H - Clear_Faults

    XDPP1100 PMBus command set PMBus commands – standard Bit number Purpose Value and meaning controlled by CONTROL pin and serial bus by the CONTROL pin and OPERATION commands command (as programmed in bits [3:0]) Controls how the unit responds to...
  • Page 7: 11H - Store_Default_All

    XDPP1100 PMBus command set PMBus commands – standard Data byte value Meaning 0x40 Disable all writes except to the WRITE_PROTECT, OPERATION and PAGE commands 0x80 Disable all writes except to the WRITE_PROTECT command Table 8 WRITE_PROTECT Command code Command name...
  • Page 8: 17H - Store_User_Code

    XDPP1100 PMBus command set PMBus commands – standard Table 12 RESTORE_USER_ALL Command code Command name Write Tx Read Tx Bytes RESTORE_USER_ALL Send byte 1.10 17h – STORE_USER_CODE The STORE_USER_CODE command instructs the PMBus device to copy the parameter whose command code matches value in the data byte from the operating memory to the matching location in the non-volatile user store memory.
  • Page 9: 20H - Vout_Mode

    1. The three-bit mode sets whether the device uses the ULINEAR16, half- precision IEEE 754 floating point, VID or DIRECT modes for output voltage related commands. The XDPP1100 only supports ULINEAR16 mode, bit [7:5] = 000. The five-bit parameter N is a 5-bit two’s complement binary...
  • Page 10: 22H - Vout_Trim

    XDPP1100 PMBus command set PMBus commands – standard Figure 2 VOUT_MODE and VOUT_COMMAND data byte format Table 18 VOUT_COMMAND Command code Command name Write Tx Read Tx Bytes Format VOUT_COMMAND Write word Read word vout_mode 1.16 22h – VOUT_TRIM The VOUT_TRIM command is used to apply a fixed offset voltage to the output voltage command value. It is most typically used by the end user to trim the output voltage at the time the PMBus device is assembled into the end user’s system.
  • Page 11: 25H - Vout_Margin_High

    XDPP1100 PMBus command set PMBus commands – standard Table 21 VOUT_MAX Command code Command name Write Tx Read Tx Bytes Format VOUT_MAX Write word Read word vout_mode 1.19 25h – VOUT_MARGIN_HIGH This VOUT_MARGIN_HIGH command loads the unit with the voltage to which the output is to be changed when the OPERATION command is set to margin high.
  • Page 12: 29H - Vout_Scale_Loop

    XDPP1100 PMBus command set PMBus commands – standard 1.23 29h – VOUT_SCALE_LOOP The VOUT_SCALE_LOOP command scales VOUT_COMMAND, etc. for the external resistor divider on the voltage sense input to the device. The vout_scale register has LSB 2^-16, range 0.0 to 0.99998.
  • Page 13: 37H - Interleave

    XDPP1100 PMBus command set PMBus commands – standard Table 30 POWER_MODE Command code Command name Write Tx Read Tx Bytes Value/Meaning 0x00: Max. efficiency POWER_MODE Write byte Read byte 0x03: Max. power 1.28 35h – VIN_ON The VIN_ON command sets the value of the input voltage, in volts, at which the unit should start power conversion.
  • Page 14 XDPP1100 PMBus command set PMBus commands – standard 1.31 39h – IOUT_CAL_OFFSET The IOUT_CAL_OFFSET is used to null out any offsets in the output current sensing circuit. This command is used to minimize the offset error of the current sensing circuit. This command has two data bytes in the LINEAR11 data format.
  • Page 15 XDPP1100 PMBus command set PMBus commands – standard 1.34 42h – VOUT_OV_WARN_LIMIT The VOUT_OV_WARN_LIMIT command sets the value of the output voltage at the sense or output pins that causes an output voltage high warning. This value is typically less than the output overvoltage threshold. The warning limit is used by firmware (FW) as the hysteresis of the VOUT_OV fault.
  • Page 16 XDPP1100 PMBus command set PMBus commands – standard Meaning Delay time in ms. Delay time, ms = (2^delay time) * Vout_Delay_Unit (configured by FW_CONFIG_FAULTS) Table 43 VOUT_UV_FAULT_RESPONSE Command code Command name Write Tx Read Tx Bytes Format VOUT_UV_FAULT_RESPONSE Write byte...
  • Page 17 XDPP1100 PMBus command set PMBus commands – standard 1.40 48h – IOUT_OC_LV_FAULT_LIMIT In the case where the response to an overcurrent condition is to operate in a constant current mode unless the output voltage is pulled below the specified value, the IOUT_OC_LV_FAULT_LIMIT specifies that voltage threshold.
  • Page 18 XDPP1100 PMBus command set PMBus commands – standard Meaning 111: Retry continuously Delay time in ms. Delay time, ms = (2^delay time) * Vout_Delay_Unit (configured by FW_CONFIG_FAULTS) Table 51 IOUT_UC_FAULT_RESPONSE Command code Command name Write Tx Read Tx Bytes Format...
  • Page 19 XDPP1100 PMBus command set PMBus commands – standard 1.46 51h – OT_WARN_LIMIT The OT_WARN_LIMIT command sets the temperature of the unit, in degrees Celsius, at which it should indicate an overtemperature (OT) warning alarm. The OT warning threshold is used by FW as hysteresis of the OT fault.
  • Page 20 XDPP1100 PMBus command set PMBus commands – standard Meaning Delay time in ms. Delay time, ms = (2^delay time) * Vout_Delay_Unit (configured by FW_CONFIG_FAULTS) Table 59 UT_FAULT_RESPONSE Command code Command name Write Tx Read Tx Bytes Format UT_FAULT_RESPONSE Write byte...
  • Page 21 XDPP1100 PMBus command set PMBus commands – standard used by FW as the hysteresis of the VIN_OV fault. This command has two data bytes in the LINEAR11 data format. Table 63 VIN_OV_WARN_LIMIT Command code Command name Write Tx Read Tx...
  • Page 22 XDPP1100 PMBus command set PMBus commands – standard Table 67 VIN_UV_FAULT_RESPONSE Command code Command name Write Tx Read Tx Bytes Format VIN_UV_FAULT_RESPONSE Write byte Read byte Table 66 1.56 5Bh – IIN_OC_FAULT_LIMIT The IIN_OC_FAULT_LIMIT command sets the value of the input current, in amperes, that causes an input overcurrent fault.
  • Page 23 XDPP1100 PMBus command set PMBus commands – standard Table 71 IIN_OC_WARN_LIMIT Command code Command name Write Tx Read Tx Bytes Format IIN_OC_WARN_LIMIT Write word Read word U6.2 1.59 5Eh – POWER_GOOD_ON The POWER_GOOD_ON command sets the output voltage at which an optional POWER_GOOD signal should be asserted, indicating that the output voltage is valid.
  • Page 24 XDPP1100 PMBus command set PMBus commands – standard 1.63 62h – TON_MAX_FAULT_LIMIT The TON_MAX_FAULT_LIMIT command sets an upper limit, in milliseconds, on how long the unit can attempt to power up the output without reaching the output undervoltage fault limit. This command has two data bytes in the LINEAR11 data format.
  • Page 25 XDPP1100 PMBus command set PMBus commands – standard 1.66 65h – TOFF_FALL The TOFF_FALL command sets the time, in milliseconds, from the end of the turn-off delay time until the voltage is commanded to zero. Note that this command can only be used with a device whose output can sink enough current to cause the output voltage to decrease at a controlled rate.
  • Page 26 XDPP1100 PMBus command set PMBus commands – standard Bit name Meaning This bit is asserted if the unit is not providing power to the output, regardless of the reason, including simply not being enabled. VOUT_OV_FAULT An output overvoltage fault has occurred.
  • Page 27: Table 86

    XDPP1100 PMBus command set PMBus commands – standard Table 87 STATUS_WORD Command code Command name Write Tx Read Tx Bytes Format STATUS_WORD Write word Read word Table 86 1.72 7Ah – STATUS_VOUT The STATUS_VOUT command returns one data byte with contents as follows:...
  • Page 28: Command Code Command Name

    XDPP1100 PMBus command set PMBus commands – standard 1.74 7Ch – STATUS_INPUT The STATUS_INPUT command returns one data byte with contents as follows: Table 92 STATUS_INPUT data format Meaning VIN_OV_FAULT (input overvoltage fault) VIN_OV_WARNING (input overvoltage warning) VIN_UV_WARNING (input undervoltage warning)
  • Page 29 XDPP1100 PMBus command set PMBus commands – standard Table 96 STATUS_CML data format Meaning Invalid or unsupported command received Invalid or unsupported data received Packet error check failed Memory fault detected Processor fault detected Reserved A communication fault other than the ones listed in this table has occurred...
  • Page 30: Write Tx

    XDPP1100 PMBus command set PMBus commands – standard Meaning IOUT_OC fast fault Common fault (see fault common registers for status) External fault Manufacturer defined (unused) Manufacturer defined (unused) Manufacturer defined (unused) Table 101 STATUS_MFR_SPECIFIC Command code Command name Write Tx...
  • Page 31 XDPP1100 PMBus command set PMBus commands – standard 1.82 8Ch – READ_IOUT The READ_IOUT command returns the measured output current in amperes. This command has two data bytes in the LINEAR11 data format. The READ_IOUT exponent is configured by 0xC6 FW_CONFIG_TELEMETRY command.
  • Page 32 XDPP1100 PMBus command set PMBus commands – standard 1.86 91h – READ_FAN_SPEED_2 The READ_FAN_SPEED_2 command returns the speed of FAN2 in RPM. This command has two data bytes in the LINEAR11 data format. The exponent is configured by 0xC6 FW_CONFIG_TELEMETRY command.
  • Page 33 XDPP1100 PMBus command set PMBus commands – standard Table 114 READ_PIN Command code Command name Write Tx Read Tx Bytes Format U10.0, U11.-1, U12.-2, U9.1, U8.2 READ_PIN Read word Configured by FW_CONFIG_TELEMETRY 1.91 98h – PMBUS_REVISION PMBUS_REVISION command stores or reads the revision of the PMBus with which the device is compliant.
  • Page 34 XDPP1100 PMBus command set PMBus commands – standard 1.94 9Bh – MFR_REVISION The MFR_REVISION command is used to either set or read the manufacturer’s revision number. Each manufacturer uses the format of its choice for the revision number. MFR_REVISION is typically set at the time of manufacture or if the device is updated to a later revision.
  • Page 35: Bytes Format U10.0, U11.-1, U12.-2

    XDPP1100 PMBus command set PMBus commands – standard Table 123 MFR_VIN_MIN Command code Command name Write Tx Read Tx Bytes Format MFR_VIN_MIN Write word Read word U7.0 1.99 A1h – MFR_VIN_MAX The MFR_VIN_MAX command sets or retrieves the maximum rated value, in volts, of the input voltage. This command has two data bytes in the LINEAR11 data format.
  • Page 36: Bytes Format U10.0, U11.-1, U12.-2

    XDPP1100 PMBus command set PMBus commands – standard Table 128 MFR_VOUT_MAX Command code Command name Write Tx Read Tx Bytes Format MFR_VOUT_MAX Write word Read word Vout_mode 1.104 A6h – MFR_IOUT_MAX The MFR_IOUT_MAX command sets or retrieves the maximum rated value, in amperes, to which the output may be loaded.
  • Page 37 XDPP1100 PMBus command set PMBus commands – standard Table 133 IC_DEVICE_REV Command code Command name Write Tx Read Tx Bytes Format IC_DEVICE_REV Read word 1.109 B0h – USER_DATA_00 Generic user scratchpad. This command is for the user to keep any of their own model tracking/serial information.
  • Page 38 XDPP1100 PMBus command set PMBus commands – non-standard PMBus commands – non-standard C4h FW_CONFIG_PWM FW_CONFIG_PWM defines the PWMx mask of primary FETs and secondary SR FETs. The PWM mask is handled by FW and is automatically programmed by the device topology tool in the GUI. Take the FB-FB example; the...
  • Page 39 XDPP1100 PMBus command set PMBus commands – non-standard C5h FW_CONFIG_REGULATION FW_CONFIG_REGULATION (Figure 4) configures multi-segment droop parameters and flexible start- up/shutdown functions. These features can also be configured in “Design Tools” under “System Settings”. Figure 4 FW_CONFIG_REGULATION Table 137 FW_CONFIG_REGULATION data format...
  • Page 40 XDPP1100 PMBus command set PMBus commands – non-standard Field name Meaning ACF = 0, PSCT = 1, HBCT = 2, HBFW = 3, PSFW = 4, FBCT = 5, FBFW 15:13 TOPOLOGY = 6, BUCK, BOOST, BUCK-BOOST = 7 CURRENT_DOUBLER_ENABLE...
  • Page 41 XDPP1100 PMBus command set PMBus commands – non-standard Figure 5 FW_CONFIG_TELEMETRY Table 139 FW_CONFIG_TELEMETRY data byte format Bit(s) Parameter Meaning LSB and range Gain correction for tempi 167:160 TEMPI_GAIN_BASE s4.4 telemetry (not implemented) Gain correction for tempb 159:152 TEMPB_GAIN_BASE s4.4...
  • Page 42 XDPP1100 PMBus command set PMBus commands – non-standard Offset correction for tempb 79:72 TEMPB_OFFSET telemetry (not implemented) Offset correction for tempa 71:64 TEMPA_OFFSET telemetry (not implemented) 63:56 IIN_OFFSET Offset correction for I telemetry 0.0625 A, -8 A ~7.9375 A Offset correction for V...
  • Page 43 XDPP1100 PMBus command set PMBus commands – non-standard Temperature_Delay_Unit Time unit for retry responses. 0: 1 ms, 1: 4 ms, 2: 16 ms, 3: 256 ms The fault pin mask, fault enable mask and fault_t2_shut_mask are defined in Table 141.
  • Page 44 XDPP1100 PMBus command set PMBus commands – non-standard Fault Fault OT_FAULT OT_WARN UT_FAULT UT_WARN POWER_LIMIT_MODE ISHARE_FAULT VOUT_MAX_MIN_WARN SYNC_FAULT FLUX_BAL_FAULT 25 to 31 Unused Table 143 FW Fault Fault Fault RESERVED_FW_NO_FAULT FAULT_TYPE_COMMON_SHUTDOWN TON_MAX_FAULT TOFF_MAX_WARN PIN_OP_WARN POUT_OP_WARN VIN_INSUFFICIENT 7 to 31 Spare for user For example, to disable the fault pin responding to UT_WARN, set bits 19 to 1 by writing 0x 00 08 00 00 to fault_pin_mask_hw.
  • Page 45 To enable XADDR1 resistor offset, bit 0 and bit 16 of FW_CONFIG_PMBUS should be set to 1, and the configuration must be stored in OTP. This is because XDPP1100 only checks XADDR resistor offset at IC power- up. The base address of PMBus and I C should be set to different values to avoid conflict.
  • Page 46 XDPP1100 PMBus command set PMBus commands – non-standard Table 147 FW_CONFIG_PMBUS Command code Command name Write Tx Read Tx Bytes Format FW_CONFIG_PMBUS Block write Block read Table 146 CAh MFR_IOUT_OC_FAST_FAULT_RESPONSE The MFR_IOUT_OC_FAST_FAULT_RESPONSE command instructs the device to take a defined action in response to a fast output overcurrent fault (exceeding 0xD1 MFR_IOUT_OC_FAST_FAULT_LIMIT).
  • Page 47 XDPP1100 PMBus command set PMBus commands – non-standard Figure 7 MFR_VRECT_SCALE For a secondary controller in an isolated converter, one way to sense input voltage is to sense the transformer secondary rectified voltage (V ), and then calculate primary voltage based on transformer turns ratio. The...
  • Page 48 XDPP1100 PMBus command set PMBus commands – non-standard common command and applies to both loops. In the XDPP1100 GUI, the active primary and secondary PWMs will be highlighted in green and blue respectively, as shown in Figure 8. Writing inactive PWM is not allowed in the GUI to prevent accidentally setting the dead-time of the other loop.
  • Page 49 Table 153 2.13 DCh MFR_SELECT_TEMPERATURE_SENSOR Use MFR_SELECT_TEMPERATURE_SENSOR to configure the temperature sensor. XDPP1100 can handle up to two external temperature sensors – tempa and tempb – for loop0 and loop1 respectively. It also has an internal temperature sensor, tempi. User Manual 49 of 61 V 1.0...
  • Page 50 XDPP1100 PMBus command set PMBus commands – non-standard Figure 9 MFR_SELECT_TEMPERATURE_SENSOR Fault_Source_Select chooses the temperature fault from the following sources: temperature sensor a (tempa), temperature sensor b (tempb), and internal temperature sensor (tempi). Register fault_temp_src_sel will be set based on the configuration of bit [5:3].
  • Page 51 MFR_IOUT_APC = ISEN_LSB/R The ISEN_LSB is the resolution of I which is determined by the isenX_gain_mode register. XDPP1100 offers two levels of gain: 100 µV, and 1.45 mV, which reference to ground (GND); and one IPS mode, whose resolution is 1.45 mV and reference to a DC bias range from 1.11 V to 1.6 V.
  • Page 52 MFR_SECURITY_BIT_MASK_HIGH to protect this after setup. Length can vary by user selection in the spreadsheet, but hash will be 4 bytes. The XDPP1100 GUI provides a PMBus protection feature which restricts write action over selected PMBus commands. The user can set up a password with MFR_SETUP_PASSWORD command to protect selected PMBus commands that are defined by 0xF4 and 0xF5 security mask.
  • Page 53 XDPP1100 PMBus command set PMBus commands – non-standard Table 167 MFR_SECURITY_BIT_MASK_HIGH Command Command name Write Tx Read Tx Bytes code MFR_SECURITY_BIT_MASK_HIGH Block write Block read 2.22 FDh MFR_FIRMWARE_COMMAND_DATA The MFR_FIRMWARE_COMMAND_DATA works together with command 0xFE MFR_FIRMWARE_COMMAND. In Table 168 the value corresponds to each configuration of MFR_FIRMWARE_COMMAND, and input data defines the value that needs to be configured prior to writing the MFR_FIRMWARE_COMMAND;...
  • Page 54 XDPP1100 PMBus command set PMBus commands – non-standard Value Name Input data Output data Bits 16 to 23: reserved Bits 24 to 31: OTP partition number, between 0 and 15 0: disable protect, 0x13 TRIM_PROTECT !=0: enable protect 7:0 xvalent...
  • Page 55 XDPP1100 PMBus command set PMBus commands – non-standard Value Meaning RESTORE_TRIM RESTORE_CONFIG RESTORE_USER RESTORE_FW_PATCH UNINITIALIZE_DRIVER INITIALIZE_DRIVER FORCE_FIRMWARE_FAULTS SYSTEM_RESET DISABLE_I2C_BUS 0x10 CONFIGURATOR_REMAINING_SIZE 0x11 OTP_FS_COMMAND_STORE 0x12 OTP_FS_INVALIDATE 0x13 TRIM_PROTECT 0x14 STORE_PARTIAL_CONFIG 0x15 RESTORE_PARTIAL_CONFIG 0x16 EXECUTE_PATCH_FROM_RAM 0x17 READ_COMMON_FAULTS_STATUS 0x18 GET_LOOP_OTP_SIZE 0x19 READ_OPEN_SENSE_COMMON_FAULTS_STATUS Table 172...
  • Page 56 00b to 11b Fan 2 tachometer pulses per revolution Bit 6 and bit 2, the XDPP1100 only supports duty-cycle mode. Bit 5:4 and 1:0 of the command tells the PMBus device the number of tachometer pulses per revolution. This information is needed for commanding and reporting fan speed in RPM. Two bits are provided for each fan.
  • Page 57 XDPP1100 PMBus command set Patched commands 3Ch – FAN_COMMAND_2 The FAN_COMMAND_1, and FAN_COMMAND_2 commands are used to adjust the operation of up to two fans contained in the PMBus device or in the host system. For fans contained in the PMBus device, the host system may override the commanded values if necessary to maintain proper system temperatures.
  • Page 58 XDPP1100 PMBus command set Patched commands CCh – MFR_BOARD_TRIM Table 180 MFR_BOARD_TRIM data byte format Bit(s) Field name Meaning 15:11 mfr_lo_clk_trim_fine U5.0 10:7 mfr_lo_clk_trim_coarse S4.0, -12 to +10.5 MHz mfr_vout_offset_trim -40 to +38.75 mV LSB 1.25 mV, s6.0 trim_enable Enable post-solder trimming...
  • Page 59 XDPP1100 PMBus command set Patched commands 3.11 D5h – MFR_SS_RAMP_FSW Table 186 MFR_SS_RAMP_FSW data byte format Bit(s) Field name Meaning reserved Reserved When 1 enables peak current mode control (PCMC) f ramp enable_pcmc_fsw_ramp on start-up Table 187 MFR_SS_RAMP_FSW Command code...
  • Page 60 XDPP1100 PMBus command set Revision history Revision history Document Date of release Description of changes version V 1.0 18-06-2021 First release User Manual 60 of 61 V 1.0 2021-06-18...
  • Page 61 Infineon Technologies hereby disclaims dangerous substances. For information on the types © 2021 Infineon Technologies AG. any and all warranties and liabilities of any kind in question please contact your nearest Infineon All Rights Reserved. (including without limitation warranties of non- Technologies office.

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