
REF: BB_SRM_xM BeagleBoard-xM System
Reference Manual
Revision A2
Page 125 of 164
9.5.4 Auxiliary Access Header
Table 37 gives the signal names of the pins on the Auxiliary Access Connector.
Table 37. P17 Auxiliary Access Signals
Pin# Signal
I/O
Description
1 VIO_1V8 PWR 1.8V IO Rail
2 VMMC2 PWR 1.85V to 3.15V Rail. Configurable via SW.
3 MMC3_DAT2 I/O MMC interface data pin.
4 MMC_DAT7 I/O MMC interface data pin.
5 MMC3_DAT3 I/O MMC interface data pin.
6 GPIO_16 I/O General purpose I/O pin
7 GPIO_15 I/O General purpose I/O pin
8 MMC3_DAT I/O MMC interface data pin.
9 MMC_DAT5 I/O MMC interface data pin.
10 MMC3_DAT4 I/O MMC interface data pin.
11 MMC_DAT0 I/O MMC interface data pin.
12 MMC3_CMD O MMC CMD signal pin
13 MMC_DAT6 I/O MMC interface data pin.
14 MMC3_CLK O MMC clock pin
15 HDQ I/O I-wire interface pin
16 DMAREQ3 I/O DMA request input pin
17 AUX_ADC I ADC on TPS65950
18 PWR_CNTRL I Control pin for on/off button to the TPS65950
19 GND PWR
20 GND PWR
Figure 63 shows the location of P17.
Figure 63. Auxiliary Access Connector
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