User manual

Detailed hardware description
Issue E 23
GPIO
No AF Signal name Dir Active Function
Wake-up
source
See section…
14 0 ETH0_IRQ# Input Ethernet 0 Interrupt
3
Ethernet, page 47
15 2 ETH_CS1# Output Low
Chip Select 1 –
Ethernet 0
Ethernet, page 47
16 2 PWM0 Output
See
Invert
er
data
sheet
Backlight Brightness
On/Off or variable if
PWM
LCD backlight
brightness control,
page 44
17 0 ISA_IRQ Input
‘OR’ of PC/104
interrupts
3
PC/104 interrupts,
page 39
18 0 RESERVED
19 0 BKLEN Output High LCD Backlight Enable
LCD logic and
backlight power,
page 43
20 0 ISA_RST# Input
PC104 Reset Indication
(IRQ)
ZEUS PC/104
interface details
,
page 38
21 0 LVDS_EN Output High
LVDS Transceiver
Enable
LVDS interface
,
page 44
22 0 USB_PWE2 Output High
USB Port 2 Power
Enable
USB
, page 46
23 1 CIF_MCLK Output NA
Camera Interface
Master Clock
24 1 CIF_FV Input NA
Camera Interface
Frame Sync -Vertical
25 1 CIF_LV Input NA
Camera Interface Line
Sync - Horizontal
26 2 CIF_PCLK Input NA
Camera Interface Pixel
Clock
Quick Capture
camera interface
,
page 54
27 0 PTT Input High Push To Talk
ZEUS Modem-1
,
page 110
28 1
AC97_BITCLK
Input AC97 BIT CLOCK
29 1 AC97_DIN Input NA AC97 DATA IN
30 2 AC97_DOUT Output NA AC97 DATA OUT
31 2 AC97_SYNC Output AC97 SYNC
Audio
, page 45
continued…