Intel PXA26X User Manual

4-5

GP44

BTCTS

ALT_FN_1_IN

01

UARTs

BTUART clear to send

HWCTS

ALT_FN_3_IN

11

Hardware UART

HWUART clear to send

GP45

BTRTS

ALT_FN_2_OUT

10

UARTs

BTUART request to send

HWRTS

ALT_FN_3_OUT

11

Hardware UART

HWUART request to send

GP46

IRRXD

ALT_FN_1_IN

01

Infrared 
Communication Port

ICP receive data

STRXD

ALT_FN_2_IN

10

UARTs

STD_UART receive data

GP47

STTXD

ALT_FN_1_OUT

01

UARTs

STD_UART transmit data

IRTXD

ALT_FN_2_OUT

10

Infrared 
Communication Port

ICP transmit data

GP48

nPOE

ALT_FN_2_OUT

10

Memory Controller

Output Enable for Card Space

HWTXD

ALT_FN_1_OUT

01

Hardware UART

HWUART transmit

GP49

nPWE

ALT_FN_2_OUT

10

Memory Controller

Write Enable for Card Space

HWRXD

ALT_FN_1_IN

01

Hardware UART

HWUART receive

GP50

nPIOR

ALT_FN_2_OUT

10

Memory Controller

I/O Read for Card Space

HWCTS

ALT_FN_1_IN

01

Hardware UART

HWUART Clear to send

GP51

nPIOW

ALT_FN_2_OUT

10

Memory Controller

I/O Write for Card Space

HWRTS

ALT_FN_1_OUT

01

Hardware UART

HWUART Request to Send

GP52

nPCE[1]

ALT_FN_2_OUT

10

Memory Controller

Card Enable for Card Space

GP53

nPCE[2]

ALT_FN_2_OUT

10

Memory Controller

Card Enable for Card Space

MMCCLK

ALT_FN_1_OUT

01

Multimedia Card 
(MMC) Controller

MMC Clock

GP54

MMCCLK

ALT_FN_1_OUT

01

Multimedia Card 
(MMC) Controller

MMC Clock

nPSKTSEL

ALT_FN_2_OUT

10

Memory Controller

Socket Select for Card Space

GP55

nPREG

ALT_FN_2_OUT

10

Memory Controller

Card Address bit 26

GP56

nPWAIT

ALT_FN_1_IN

01

Wait signal for Card Space

USB_VMO

ALT_FN_1_OUT

01

Single Ended USB

USB Device Controller VMO

GP57

nIOIS16

ALT_FN_1_IN

01

Memory Controller

Bus Width select for I/O Card Space

USB_nOE

ALT_FN_1_OUT

01

Single Ended USB

USB Device Controller nOE

GP58

LDD[0]

ALT_FN_2_OUT

10

LCD Controller

LCD data pin 0

GP59

LDD[1]

ALT_FN_2_OUT

10

LCD data pin 1

GP60

LDD[2]

ALT_FN_2_OUT

10

LCD data pin 2

GP61

LDD[3]

ALT_FN_2_OUT

10

LCD data pin 3

GP62

LDD[4]

ALT_FN_2_OUT

10

LCD data pin 4

GP63

LDD[5]

ALT_FN_2_OUT

10

LCD data pin 5

GP64

LDD[6]

ALT_FN_2_OUT

10

LCD data pin 6

GP65

LDD[7]

ALT_FN_2_OUT

10

LCD data pin 7