General Purpose Input/Output (Gpio); Table 58. 6Hdd I; Table 59. Vsc7161* Sas Expander Gpio Assignment - Intel SC5650HCBRP Product Specification

6-HDD Expander SAS Hot Swap Backplane
Device Power
Well
P3V3
*
TMP75
P3V3
*
VSC7161
AT24C64* P3V3
VSC7161* P3V3
MMBF170(S)* P3V3
MMBF170(D)* P5V
J4D2 P5V
5.1.1.5 Temperature Sensor
The 4HDD and 6HDD active SAS/SATA HSBP provides a TI TMP75* or equivalent temperature
sensor. The host can query the TMP75* at any time to read the temperature.
The temperature sensor has an I
5.1.1.6 Serial EEPROM
The 6-HDD Expander SAS HSBP provides an Atmel AT24C64* or equivalent serial EEPROM
for storing the FRU information. The AT24C64* EEPROM provides 64 K bits of serial electrically
erasable and programmable read-only memory.
The serial EEPROM has an I
Expander.
5.1.2

General Purpose Input/Output (GPIO)

The Vitesse VSC7161* SAS Expander supports GPIO pins that are customizable. The following
table lists the GPIO pins with their assigned functions.
VSC7161* I/O Type Power
PIN Name
P0_0 O 3.3 V
P0_1 O 3.3 V
P0_2 O 3.3 V
P0_3 O 3.3 V
P0_4 O 3.3 V
P0_5 O 3.3 V
96

Table 58. 6HDD I

VIH VIL
0.7 VCC 0.3 VCC
2.0 V 0.8 V
0.7 VCC 0.3 VCC
2.0 V 0.8 V
N/A N/A
N/A N/A
0.7 VCC 0.3 VCC
2
C address of 0x90h on Port 0 of the VSC7161* SAS Expander.
2
C address of 0xA0h and resides on Port 0 of the VSC7161* SAS

Table 59. VSC7161* SAS Expander GPIO Assignment

Programming
Well
Description
HDD0 Fault LED control
HDD1 Fault LED control
HDD2 Fault LED control
HDD3 Fault LED control
HDD4 Fault LED control
HDD5 Fault LED control
Intel order number E81443-002
Intel® Server System SC5650HCBRP TPS
2
C Bus Loading
VOL Ileak
0.4 V/3 mA 1 uA
0.4 V/4 mA 10 uA
0.4 V/2.1 mA 3 uA
0.4 V/4 mA 10 uA
N/A N/A
N/A N/A
0.4 V/3 mA 10 uA
LED_DRV0_FLT_N
LED_DRV1_FLT_N
LED_DRV2_FLT_N
LED_DRV3_FLT_N
LED_DRV4_FLT_N
LED_DRV5_FLT_N
CAP I2C I2C Bus Name
Address
3 PF 90h SAS_I2C0_DAT,
SAS_I2C0_CLK
N/A N/A SAS_I2C0_DAT,
SAS_I2C0_CLK
8 PF A0h SAS_I2C0_DAT,
SAS_I2C0_CLK
N/A C0h or SAS_I2C1_DAT,
C2h SAS_I2C1_CLK
N/A N/A SAS_I2C1_DAT,
SAS_I2C1_CLK
N/A N/A SMB_IPMB_5V_CLK,
SMB_IPMB_5V_DAT
4/8 P N/A SMB_IPMB_5V_CLK,
SMB_IPMB_5V_DAT
System Function
Pull up 4.7 K to 3.3 V
Pull up 4.7 K to 3.3 V
Pull up 4.7 K to 3.3 V
Pull up 4.7 K to 3.3 V
Pull up 4.7 K to 3.3 V
Pull up 4.7 K to 3.3 V
Connection
Revision 1.2