
Package Information
14
Intel PXA255 Processor Electrical, Mechanical, and Thermal Specification
L_DD[10]/
GPIO[68]
ICOCZ
LCD display data. (output) Transfers pixel information
from the LCD controller to the external LCD panel.
MMC chip select 1. (output) Chip select 1 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
L_DD[11]/
GPIO[69]
ICOCZ
LCD display data. (output) Transfers pixel information
from the LCD controller to the external LCD panel.
MMC clock. (output) Clock for the MMC controller.
Pulled High -
Note[1]
Note [3]
FFRXD/
GPIO[34]
ICOCZ
Full function UART receive. (input)
MMC chip select 0. (output) Chip select 0 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
FFTXD/
GPIO[39]
ICOCZ
Full function UART transmit. (output)
MMC chip select 1. (output) Chip select 1 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
MMCCLK/
GP[6]
ICOCZ
MMC clock. (output) Clock signal for the MMC controller.
Pulled High -
Note[1]
Note [3]
MMCCS0/
GP[8]
ICOCZ
MMC chip select 0. (output) Chip select 0 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
MMCCS1/
GP[9]
ICOCZ
MMC chip select 1. (output) Chip select 1 for the MMC
controller.
Pulled High -
Note[1]
Note [3]
SSP Pins
SSPSCLK/
GPIO[23]
ICOCZ
Synchronous serial port clock. (output)
Pulled High -
Note[1]
Note [3]
SSPSFRM/
GPIO[24]
ICOCZ
Synchronous serial port frame. (output)
Pulled High -
Note[1]
Note [3]
SSPTXD/
GPIO[25]
ICOCZ
Synchronous serial port transmit. (output)
Pulled High -
Note[1]
Note [3]
SSPRXD/
GPIO[26]
ICOCZ
Synchronous serial port receive. (input)
Pulled High -
Note[1]
Note [3]
SSPEXTCLK/
GPIO[27]
ICOCZ
Synchronous serial port external clock. (input)
Pulled High -
Note[1]
Note [3]
NSSP Pins
NSSPSCLK/
GPIO[81]
ICOCZ
Network synchronous serial port clock. (output/input)
Pulled High -
Note[1]
Note [3]
NSSPSFRM/
GPIO[82]
ICOCZ
Network synchronous serial port frame. (output/input)
Pulled High -
Note[1]
Note [3]
NSSPTXD/
GPIO[83]
ICOCZ
Network synchronous serial port transmit/recieve.
(output/input)
Pulled High -
Note[1]
Note [3]
NSSPRXD/
GPIO[84]
ICOCZ
Network synchronous serial port transmit/receive.
(output/input)
Pulled High -
Note[1]
Note [3]
USB Client Pins
USB_P
IAOAZ
USB client positive. (bidirectional)
Hi-Z
USB_N
IAOAZ
USB client negative pin. (bidirectional)
Hi-Z
Table 3. Pin and Signal Descriptions for the PXA255 Processor (Sheet 6 of 9)
Pin Name
Type
Signal Descriptions
Reset State
Sleep State