Board Connectors
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SPRUIF8 – June 2017
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Copyright © 2017, Texas Instruments Incorporated
AM438x ePOS EVM Hardware
8
Board Connectors
The pinout details of all the connectors used in the ePOS EVM are provided in the following sections.
8.1
SDMMC0 – J10
Table 6
lists the pin details of the AM438x SDMMC0 connector.
Table 6. AM438x SDMMC0 Connector Pin Details
Pin No.
Signal
MMC plus, MMC mobile, MMC, RS-MMC, SD#1
MMC0_D3
MMC plus, MMC mobile, MMC, RS-MMC, SD#2
MMC0_CMD
MMC plus, MMC mobile, MMC, RS-MMC, SD#3
GND
MMC plus, MMC mobile, MMC, RS-MMC, SD#4
VCC
MMC plus, MMC mobile, MMC, RS-MMC, SD#5
MMC0_CLK
MMC plus, MMC mobile, MMC, RS-MMC, SD#6
GND
MMC plus, MMC mobile, MMC, RS-MMC, SD#7
MMC0_D0
MMC plus, MMC mobile, SD#8
MMC0_D1
MMC plus, MMC mobile, SD#9
MMC0_D2
MMC plus, MMC mobile#10
NC
MMC plus, MMC mobile#11
NC
MMC plus, MMC mobile#12
NC
MMC plus, MMC mobile#13
NC
miniSD#1
MMC0_D3
miniSD#2
MMC0_CMD
miniSD#3
GND
miniSD#4
VCC
miniSD#5
MMC0_CLK
miniSD#6
GND
miniSD#7
MMC0_D0
miniSD#8
MMC0_D1
miniSD#9
MMC0_D2
miniSD#10
NC
miniSD#11
NC
8.2
LCD Connector – J44
Table 7
lists the pin details of the LCD connector.
Table 7. AM438x LCD Connector Pin Details
Pin No.
Signal
Description
1
VLED+
Backlight power +
2
VLED+
Backlight power +
3
VLED-
Backlight power –
4
VLED-
Backlight power –
5
GND
Ground
6
VLCD_VCOM
Voltage
7
VLCD_DVDD
Voltage
8
GND
Ground
9
LCD_EN
LCD enable
10
LCD_VSYNC
LCD vertical sync