Intel PXA26X - Manual (Page 47)

Intel® PXA26x Processor Family Developer’s Manual 2-17
System Architecture
GPIO[14:2] ICOCZ
GENERAL PURPOSE I/O:
More wake-up sources for sleep mode.
Pulled High
Note [1]
Note [3]
GPIO[22:21] ICOCZ
GENERAL PURPOSE I/O:
Additional General Purpose I/O pins.
Pulled High
Note [1]
Note [3]
GPIO[85] ICOCZ
GENERAL PURPOSE I/O:
Additional General Purpose I/O pins.
Pulled High
Note [1]
Note [3]
Crystal and Clock Pins
PXTAL OA
3.6864-MHz CRYSTAL OUTPUT:
No external caps are required.
Note [2] Note [2]
PEXTAL IA
3.6864-Mhz CRYSTAL INPUT:
No external caps are required.
Note [2] Note [2]
TXTAL OA
32.768-Khz CRYSTAL OUTPUT:
No external caps are required.
Note [2] Note [2]
TEXTAL IA
32.768-Khz CRYSTAL INPUT:
No external caps are required.
Note [2] Note [2]
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 the 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]
48MHz/GP[7] ICOCZ
48-MHz CLOCK (output):
Peripheral clock output derived from the PLL.
NOTE: This clock is only generated when the USB unit
clock enable is set.
Pulled High
Note [1]
Note [3]
RTCCLK/GP[10] ICOCZ
REAL TIME CLOCK (output):
1-Hz output derived from the 32-KHz or 3.6864-MHz
output.
Pulled High
Note [1]
Note [3]
3.6MHz/GP[11] ICOCZ
3.6864-MHz CLOCK (output):
Output from 3.6864-MHz oscillator.
Pulled High
Note [1]
Note [3]
32KHz/GP[12] ICOCZ
32-KHz CLOCK (output):
Output from the 32-KHz oscillator.
Pulled High
Note [1]
Note [3]
Table 2-6. Pin & Signal Descriptions for the PXA26x Processor Family (Sheet 9 of 12)
Pin Name Type Signal Descriptions Reset State Sleep State