Gpio Expander Io Chart - Texas Instruments DRA7 Series User Manual

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CPU Board
COM8 Connector
Audio Codec
Expansion Connector
PMIC
GPIO Expander
FPD Link
LI Camera
Expansion Connector
HDMI DDC
Expansion Connector
1. 0X18 on Rev E boards and older. On Rev G boards and later, I2C address is switchable (SW8.P2).
Need 0X18 on AIC when using 7" display and 0X19 when using 10.1" display.
3.5.1 I2C GPIO Expander IO List
Slave
Ref. Des Address
U58 0b0010 000
(0x20)
SPRUI50 – February 2016
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Table 24. I2C Device Address Chart (continued)
Part No
Connector
TLV320AIC3106
Connector
TPS659039 - DVS
TPS659039 - Power
TPS659039 - Interfaces
TPS659039 - Trimming
TPS659039 - OTP
PCF8575
DS90UH925Q
Connector
Connector
Connector
Connector
Table 25. GPIO Expander IO Chart
I2C I/F Expander IO Netname
I2C1 INT# PCF8575_INT
P0 TS_LCD_GPIO1
P1 TS_LCD_GPIO2
P2 TS_LCD_GPIO3
P3 TS_LCD_GPIO4
P4 USER_LED1
P5 USER_LED2
P6 USER_LED3
P7 USER_LED4
P10 EXP_ETH0_RSTn
P11 EXP_ETH1_RSTn
P12 USB1-VBUS_OCN
P13 USB2-VBUS_OCN
P14 PCI_SW_RESETn
P15 CON_LCD_PWR_DN
P16 NC
P17 TMP102_ALERT
Copyright © 2016, Texas Instruments Incorporated
Ref. Des I2C1 I2C2
P9 X
U59 X
EXP_P2 X
U45 X
U45 X
U45 X
U45 X
U45 X
U119 X
U3 X
J5 X
EXP_P3 X
P4 X
EXP_P1
Hardware
Device
I2C3 Address(7b)
NA
0x18 or 0X19
NA
0x12
0x58
0x59
0x5A
0x5B
0x26
0x1B
NA
NA
NA
X NA
Description
Interrupt output
Press Button Switch 1
Press Button Switch 2
Press Button Switch 3
Press Button Switch 4
User LED 1
User LED 2
User LED 3
User LED 4
RGMII0 Reset
RGMII1 Reset
USB1 Over Current Indication
USB2 Over Current Indication
PCI Interface SW Reset
LCD Board Master power enable
No Connection
Digital Temp. sensor Altert signal
DRA7x EVM CPU Board
(1)
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