Graphics ClientM User Manual
110120-1000A
12
GPIO
Name
Type Description
82
IRQ_AVR
O
Interrupt to ADSmartIO
84
BT_EN
O
Off-board Bluetooth transceiver enable
85
USBH_PWR2#
I
USB Host 2 over current detection (optional)
86
IR_EN
O
Off-board IrDA transceiver enable
93
SSPFRMSEL
O
Selection control for SPI interface to 5-wire
touch screen controller or ADSmartIO
97
FF_EN
O
Selection control for EIA-232 or EIA422/485
operation on Serial 1 and EIA-232 transceiver
shutdown control
99
CFON#
O
CompactFlash power control
100
GPIO100
IO
GPIO
104
SD2_CD#
I
SD/MMC 2 Card Detect
107
USBC_DET#
I
USB 1.1 Client sense connection
108
SD1_CD#
I
SD/MMC 1 Card Detect
113..117 GPIO113..117
IO
GPIO
118
MIC_LINE#
O
Microphone power enable
119
AUDIO_ON
O
AC ’97 codec power control
120
AUDIOPA_ON
O
Speaker power amplifier shutdown control
121..125 GPIO121..125
IO
GPIO
126
BL_ON
O
Backlight on and off control
127
LCD_ON
O
Display power control and
display data buffer enable
4_2
GPIO4_2
IO
GPIO
5_2
VEE_ON
O
VEE adapter on and off control
Memory
This section describes the different types of memory available on the GCM.
Synchronous DRAM
The GCM includes Double Date Rate Synchronous DRAM (DDR SDRAM) for kernel,
application, and display frame buffer use. The standard memory configuration is 128 MB.
Up to 256 MB is available as a volume production option. Data bus width supports 32-bit
accesses while also allowing access to individual bytes.
Summary of Contents for PXA320
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