IGEP
TM
v2
Hardware Reference Manual
ISEE 2007 S.L. All rights reserved, IGEP
™
is a registered trademar k from ISEE 2007 S.L. The followi ng is provided for informational purpos es onl y.
DOCUMENT FROM ISEE 2007 S.L. Ref: MAN-PR-IGEP0020-RCx
18
UART_RTS
O
BT
UART request to send active low. CMOS input with weak internal pull -down.
SD_D3
I/O
WLAN
SDIO 4-bit Mode: SD_DAT[3] Data Line Bit [3] SDIO 1-bit Mode: SD_DAT[3] Reserved SDIO
SPI Model: SD_DAT[3] Card Select (active low)
SD_D2
SPI_SINTn
I/O
WLAN
G-SPI Mode: SPI_SINTn G-SPI interrupt Output (active low) SDIO 4-bit Mode: SD_DAT[2]
Data Line Bit [2] or Read Wait (optional) SDIO 1-bit Mode: SD_DAT[2] Read Wait (optional)
SDIO SPI Model: SD_DAT[2] Reserved
SD_D1
SPI_SDO
I/O
WLAN
G-SPI Mode: SPI_SDO
G-SPI Data Output SDIO 4-bit Mode: SD_DAT[1] Data Line Bit [1] SDIO 1-bit Mode:
SD_DAT[1] Interrupt SDIO SPI Model: SD_DAT[1] Reserved
SD_D0
SPI_SCSn
I/O
WLAN
G-SPI Mode: SPI_SCSn G-SPI Chip Select input SDIO 4-bit Mode: SD_DAT[0] Data Line Bit
[0] SDIO 1-bit Mode: SD_DAT[0] Data Line SDIO SPI Model: SD_DAT[0] Data Output
SD_CMD
SPI_SDI
I/O
WLAN
G-SPI Mode: SPI_SDI G-SPI Data Input SDIO 4-bit Mode: SD_CMD Command/Response
SDIO 1-bit Mode: SD_CMD Command Line SDIO SPI Model: SD_CMD Data Input
SD_CLK
SPI_CLK
I/O
WLAN
G-SPI Mode: SPI_CLK G-SPI Clock Input SDIO 4-bit Mode: SD_CLK Clock Input SDIO 1-bit
Mode: SD_CLK Clock Input SDIO SPI Model: SD_CLK Clock Input
RESET_N_W
I
WLAN
Internal pull-up. Reset (active low)
PDn
I
WLAN
Full Power Down (active low) 0 = full power down mode 1 = normal mode
Table 9 Wi-Fi/Bluetooth Interface summary
Bluetooth UART uses the UART 2 from OMAP3530/DM3730.
Bluetooth Digital Audio uses MCBSP3 from OMAP3530/DM3730.
Wi-Fi uses MMC2 interface from OMAP3530/DM3730.
[MMC2_CLK0, MMC2_CMD, MMC2_DAT0, MMC2_DAT1, MMC2_DAT2, MMC2_DAT3].
UART2 and McBSP3 can be used in boards without Wi-Fi/Bluetooth or if the Bluetooth is in
reset and TPS65950 PCM VSP it’s disabled.
5.6.3
POWER-ON RESET SEQUENCE FOR WLAN
PDn / RESET_N_W tied together
PDn pin separated from RESET_N_W. Host cannot pulse RESET_N_W pin.
