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ZEUS Technical Manual Detailed hardware description
© 2007 Eurotech Ltd Issue D 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 52
15 2 ETH_CS1# Output Low Chip Select 1 – Ethernet 0 Ethernet, page 52
16 2 PWM0 Output
See
Inverter
data
sheet
Backlight Brightness On/Off
or variable if PWM
LCD backlight
brightness control
,
page 47
17 0 ISA_IRQ Input
‘OR’ of PC/104 interrupts
3
PC/104 interrupts,
page 42
18 0 RESERVED
19 0 BKLEN Output High LCD Backlight Enable
LCD logic and backlight
power, page 46
20 0 ISA_RST# Input
PC104 Reset Indication (IRQ)
ZEUS PC/104 interface
details, page 41
21 0 LVDS_EN Output High LVDS Transceiver Enable LVDS interface, page 47
22 0 USB_PWE2 Output High USB Port 2 Power Enable USB, page 51
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 59
27 0 PTT Input
High Push To Talk
ZEUS Modem-1, page
118
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 49
continued…