Eurotech Appliances VIPER / VIPER-LITE PXA255 - Manual (Page 23)

VIPER Technical Manual Detailed hardware description
© 2007 Eurotech Ltd Issue E 23
GPIO
No AF Signal name Dir Active Sleep Function See section…
14 0 FLASH_ STATUS Input NA Input Bootloader FLASH
Status,
Ready / nBusy
49H
Interrupt assignments
(page
305H
30 ) and
306H
FLASH
memory/silicon disk
(page
307H
27 )
15 2 CS1 Output Low Hi-Z Chip Select 1
308H
VIPER address map
(page
309H
19 )
16 2 PWM0 Output See
inverter
datasheet
0 Backlight Brightness
On/Off or variable if
PWM
310H
LCD backlight brightness
control
(page
311H
37 )
17 2 PWM1 Output NA 0 STN Bias
312H
STN BIAS voltage
(page
313H
38 )
18 1 ARDY Input Low Input 10/100 Ethernet PHY
Ready -
19 0 PSU_nCS_LD Output Low 0 Microprocessor Core
Voltage DAC Chip
Select
314H
Processor power
management
(page
315H
81 )
20 0 OUT0
21 0 OUT1
22 0 OUT2
23 0 OUT3
24 0 OUT4
25 0 OUT5
26 0 OUT6
27 0 OUT7
Output
User
Config
0 User Config 316H
General purpose I/O
(page
317H
57 )
28 1 AC97_BITCLK Input Input BITCLK
29 1 AC97_IN Input NA Input SDATA_IN0
30 2 AC97_OUT Output NA 0 SDATA_OUT
31 2 AC97_SYNC Output 0 SYNC
-
32 0 CF_DETECT Input Input CF Detection
50H
Interrupt assignments
(page
318H
30 ) and
319H
CompactFLASH (page
320H
28 )
33 2 CPLDCS Output Low Hi-Z Chip Select 5
321H
VIPER address map ,
(page
322H
19 )
continued …
VL
VL
VL
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