Belkin XM Commander Especificações descarregar pdf (Página 108)

REF: BB_SRM_xM BeagleBoard-xM System

Reference Manual

Revision A2

Page 108 of 164

8.24.2 Expansion Signals

This section provides more detail on each of the signals available on the expansion

connector. They are grouped by functions in Table 23 along with a description of each

signal and the MUX setting to activate the pin. If you use these signals in their respective

groups and that is the only function you use, all of the signals are available. Whether or

not the signals you need are all available, depends on the muxing function on a per-pin

basis. Only one signal per pin is available at any one time.

Table 23. Expansion Connector Signal Groups

Signal Description I/O EXP OMAP Mux

SD/MMC Port 2

MMC2_DAT7 SD/MMC data pin 7. I/O 3 AE3 1

MMC2_DAT6 SD/MMC data pin 6. I/O 5 AF3 1

MMC2_DAT5 SD/MMC data pin 5. I/O 7 AH3 1

MMC2_DAT4 SD/MMC data pin 4. I/O 9 AE4 1

MMC2_DAT3 SD/MMC data pin 3. I/O 11 AF4 1

MMC2_DAT2 SD/MMC data pin 2. I/O 13 AG4 1

MMC2_DAT1 SD/MMC data pin 1. I/O 15 AH4 1

MMC2_DAT0 SD/MMC data pin 0. I/O 17 AH5 1

MMC2_CMD SD/MMC command signal. I/O 19 AG5 1

MMC_CLKO SD/MMC clock signal. O 21 AE2 1

McBSP Port 1

McBSP1_DR Multi channel buffered serial port receive I 18

McBSP1_CLKS -------------------------------------------------------------------------- N/A N/A

McBSP1_FSR Multi channel buffered serial port transmit frame sync RCV I/O 22

McBSP1_DX Multi channel buffered serial port transmit I/O 12

McBSP1_CLKX Multi channel buffered serial port transmit clock I/O 14

McBSP1_FSX Multi channel buffered serial port transmit frame sync XMT I/O 16

McBSP1_CLKR Multi channel buffered serial port receive clock I/O 20

I2C Port 2

I2C2_SDA I2C data line. IOD 23

I2C2_SCL I2C clock line IOD 24

McBSP Port 3

McBSP3_DR Multi channel buffered serial port receive I 10,18

McBSP3_DX Multi channel buffered serial port transmit I/O 4,12

McBSP3_CLKX Multi channel buffered serial port receive clock I/O 6,14

McBSP3_FSX Multi channel buffered serial port frame sync transmit I/O 8,16

General Purpose I/O Pins

GPIO_130 GP Input/Output pin. Can be used as an interrupt pin. I/O 21

GPIO_131 GP Input/Output pin. Can be used as an interrupt pin. I/O 19

GPIO_132 GP Input/Output pin. Can be used as an interrupt pin. I/O 17

GPIO_133 GP Input/Output pin. Can be used as an interrupt pin. I/O 15

GPIO_134 GP Input/Output pin. Can be used as an interrupt pin. I/O 13

GPIO_135 GP Input/Output pin. Can be used as an interrupt pin. I/O 11

GPIO_136 GP Input/Output pin. Can be used as an interrupt pin. I/O 9

GPIO_137 GP Input/Output pin. Can be used as an interrupt pin. I/O 7

GPIO_138 GP Input/Output pin. Can be used as an interrupt pin. I/O 5

GPIO_139 GP Input/Output pin. Can be used as an interrupt pin. I/O 3

GPIO_143 GP Input/Output pin. Can be used as an interrupt pin. I/O 8

GPIO_144 GP Input/Output pin. Can be used as an interrupt pin. I/O 4

GPIO_145 GP Input/Output pin. Can be used as an interrupt pin. I/O 10

GPIO_146 GP Input/Output pin. Can be used as an interrupt pin. I/O 6

GPIO_156 GP Input/Output pin. Can be used as an interrupt pin. I/O 20

GPIO_158 GP Input/Output pin. Can be used as an interrupt pin. I/O 12

GPIO_159 GP Input/Output pin. Can be used as an interrupt pin. I/O 18

GPIO_161 GP Input/Output pin. Can be used as an interrupt pin. I/O 16

GPIO_162 GP Input/Output pin. Can be used as an interrupt pin. I/O 14

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 163 164

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