Board Description
Table 3-2. I/O Peripheral Controller B
I/O Line
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
Peripheral A
SPI1_MISO
SPI1_MOSI
SPI1_SPCK
SPI1_NPCS0
TXD0
RXD0
TXD1
RXD1
TXD2
RXD2
TXD3
Peripheral B
TIOA3
TIOB3
TIOA4
TIOB4
TCLK1
TCLK2
ISI_D8
Comments
Function
ETHERNET DM9161A MII/RMII (IRQ)
Audio DAC WM8731 (MOSI)
Audio DAC WM8731 (SPCK)
Audio DAC WM8731 (Chip Select)
COM PORT 0 (TXD)
COM PORT 0 (RXD)
COM PORT 1 (TXD)
COM PORT 1 (RXD)
User LED
Power LED
(J28) IMAGE SENSOR CONNECTOR (PB10..PB13)
PB11
PB12
PB13
PB14
PB15
RXD3
TXD5
RXD5
DRXD
DTXD
ISI_D9
ISI_D10
ISI_D11
SERIAL DEBUG PORT(RXD)
SERIAL DEBUG PORT(TXD)
PB16
PB17
PB18
PB19
PB20
PB21
PB22
PB23
PB24
PB25
PB26
PB27
PB28
PB29
PB30
PB31
3- 8
TK0
TF0
TD0
RD0
RK0
RF0
DSR0
DCD0
DTR0
RI0
RTS0
CTS0
RTS1
CTS1
PCK0
PCK1
TCLK3
TCLK4
TIOB4
TIOB5
ISI_D0
ISI_D1
ISI_D2
ISI_D3
ISI_D4
ISI_D5
ISI_D6
ISI_D7
ISI_PCK
ISI_VSYNC
ISI_HSYNC
ISI_MCK
Audio DAC WM8731 (BCLK)
Audio DAC WM8731 (LRFS)
Audio DAC WM8731 (SDIN)
(J28) IMAGE SENSOR CONNECTOR (CTRL2)
(J28) IMAGE SENSOR CONNECTOR (PB20..PB31)
Warning: Shared with COM PORT 0 (PB22..PB27)
Warning: Shared with COM PORT 1 (PB28..PB29)
AT91SAM9G20-EK Evaluation Board User Guide
6413C–ATARM–18-Feb-09
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