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Intel® PXA26x Processor Family Developer’s Manual 2-15
System Architecture
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]
USB Client Pins
USB_P IAOAZ USB CLIENT POSITIVE (bidirectional) Hi-Z Hi-Z
USB_N IAOAZ USB CLIENT NEGATIVE PIN (bidirectional) Hi-Z Hi-Z
Single Ended USB Pins
USB_RCV/
GPIO[9]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE RCV (input):
Differential receive data from the USB transceiver.
Pulled High
Note [1]
Note [3]
USB_VP/
GPIO[32]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE VP (input):
Gated version of D+ from the USB transceiver.
Pulled High
Note [1]
Note [3]
USB_VM/
GPIO[34]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE VM (input):
Gated version of D- from the USB transceiver.
Pulled High
Note [1]
Note [3]
USB_VPO/
GPIO[39]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE VPO
(output):
Output to USB transceiver differential driver D+.
Pulled High
Note [1]
Note [3]
USB_VMO/
GPIO[56]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE VMO
(output):
Output to USB transceiver differential driver D-.
Pulled High
Note [1]
Note [3]
USB_nOE/
GPIO[57]
ICOCZ
USB CLIENT SINGLE-ENDED INTERFACE nOE (output):
Output enable for the USB transceiver to transmit data on
the bus. When deasserted, the transceiver is in receive
mode.
Pulled High
Note [1]
Note [3]
Table 2-6. Pin & Signal Descriptions for the PXA26x Processor Family (Sheet 7 of 12)
Pin Name Type Signal Descriptions Reset State Sleep State