Electrical, Mechanical, and Thermal Specification
—
PXA250 and PXA210
Datasheet
23
AC97 Controller and I
2
S Controller Pins
BITCLK/
GPIO[28]
ICOCZ
AC97 Audio Port bit clock.
(input) AC97 clock is generated by Codec 0 and fed
into the PXA210 applications processor and Codec 1.
AC97 Audio Port bit clock.
(output) AC97 clock is generated by the PXA210
applications processor.
I
2
S bit clock.
(input) I
2
S clock is generated externally and fed into PXA210
applications processor.
I
2
S bit clock.
(output) I
2
S clock is generated by the PXA210 applications
processor.
SDATA_IN0/
GPIO[29]
ICOCZ
AC97 Audio Port data in.
(input) Input line for Codec 0.
I
2
S data in.
(input) Input line for the I
2
S Controller.
SDATA_IN1/
GPIO[32]
ICOCZ
AC97 Audio Port data in.
(input) Input line for Codec 1.
I
2
S system clock.
(output) System clock from I
2
S Controller.
SDATA_OUT/
GPIO[30]
ICOCZ
AC97 Audio Port data out.
(output) Output from the PXA210 to Codecs 0 and 1.
I
2
S data out.
(output) Output line for the I
2
S Controller.
SYNC/
GPIO[31]
ICOCZ
AC97 Audio Port sync signal.
(output) Frame sync signal for the AC97
Controller.
I
2
S sync.
(output) Frame sync signal for the I
2
S Controller.
nACRESET
OC
AC97 Audio Port reset signal.
(output)
I
2
C Controller Pins
SCL
ICOCZ
I
2
C clock.
(bidirectional)
SDA
ICOCZ
I
2
C data.
(bidirectional).
PWM Pins
PWM[1:0]/
GPIO[17:16]
ICOCZ
Pulse Width Modulation channels 0 and 1.
(outputs)
GPIO Pins
GPIO[1:0]
ICOCZ
General Purpose I/O.
Wakeup sources on both rising and falling edges on
nRESET.
GPIO[57:48]
ICOCZ
General Purpose I/O.
Wakeup sources on both rising and falling edges on
nRESET.
Crystal and Clock Pins
PXTAL
IA
3.6864 Mhz crystal input.
PEXTAL
OA
3.6864 Mhz crystal output.
TXTAL
IA
32.768 khz crystal input.
TEXTAL
OA
32.768 khz crystal output.
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.
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.
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.
Table 4. Pin and Signal Descriptions for the PXA210 Applications Processor (Sheet 5 of 7)
Pin Name
Type
Signal Descriptions