Intel PXA26X - Manual (Page 43)

Intel® PXA26x Processor Family Developer’s Manual 2-13
System Architecture
L_DD[12]/
GPIO[70]
ICOCZ
LCD DISPLAY DATA (output):
Transfers pixel information from the LCD Controller to the
external LCD panel.
RTC clock. (output) Real time clock 1 Hz tick.
Pulled High
Note [1]
Note [3]
L_DD[13]/
GPIO[71]
ICOCZ
LCD DISPLAY DATA (output):
Transfers pixel information from the LCD Controller to the
external LCD panel.
3.6864-MHz clock. (output) Output from 3.6864-MHz
oscillator.
Pulled High
Note [1]
Note [3]
L_DD[14]/
GPIO[72]
ICOCZ
LCD DISPLAY DATA (output):
Transfers pixel information from the LCD Controller to the
external LCD panel.
32-KHz clock. (output) Output from the 32-KHz oscillator.
Pulled High
Note [1]
Note [3]
L_DD[15]/
GPIO[73]
ICOCZ
LCD DISPLAY DATA (output):
Transfers pixel information from the LCD Controller to the
external LCD panel.
Memory Controller grant. (output) Notifies an external
device it has been granted the system bus.
Pulled High
Note [1]
Note [3]
L_FCLK/
GPIO[74]
ICOCZ
LCD FRAME CLOCK (output):
Indicates the start of a new frame. Also referred to as
Vsync.
Pulled High
Note [1]
Note [3]
L_LCLK/
GPIO[75]
ICOCZ
LCD LINE CLOCK (output):
Indicates the start of a new line. Also referred to as Hsync.
Pulled High
Note [1]
Note [3]
L_PCLK/
GPIO[76]
ICOCZ
LCD PIXEL CLOCK (output):
Clocks valid pixel data into the LCD’s line shift buffer.
Pulled High
Note [1]
Note [3]
L_BIAS/
GPIO[77]
ICOCZ
AC BIAS DRIVE (output):
Notifies the panel to change the polarity for some passive
LCD panel. For TFT panels, this signal indicates valid pixel
data. Pulled High
Note [1]
Note [3]
Full Function UART Pins
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]
FFCTS/
GPIO[35]
ICOCZ FULL FUNCTION UART CLEAR-TO-SEND (input)
Pulled High
Note [1]
Note [3]
FFDCD/
GPIO[36]
ICOCZ
FULL FUNCTION UART DATA-CARRIER-DETECT
(input) Pulled High
Note [1]
Note [3]
FFDSR/
GPIO[37]
ICOCZ FULL FUNCTION UART DATA-SET-READY (input)
Pulled High
Note [1]
Note [3]
FFRI/
GPIO[38]
ICOCZ FULL FUNCTION UART RING INDICATOR (input)
Pulled High
Note [1]
Note [3]
FFDTR/
GPIO[40]
ICOCZ
FULL FUNCTION UART DATA-TERMINAL-READY
(output) Pulled High
Note [1]
Note [3]
Table 2-6. Pin & Signal Descriptions for the PXA26x Processor Family (Sheet 5 of 12)
Pin Name Type Signal Descriptions Reset State Sleep State