Eurotech Appliances VIPER / VIPER-LITE PXA255 User Manual
Page 24
VIPER Technical Manual
Detailed hardware description
© 2007 Eurotech Ltd Issue E
24
GPIO
No AF Signal name
Dir
Active
Sleep Function
See section…
34 1 RXD1
Input NA
Input
COM1 Receive Data
35 1 CTS1
Input NA
Input
COM1 Clear To Send
36 1 DCD1
Input NA
Input
COM1 Data Carrier
Detect
37 1 DSR1
Input NA
Input
COM1 Data Sender
Ready
38 1 RI1
Input NA
Input
COM1 Ring Indicator
39 2 TXD1
Output NA
0
COM1
Transmit
Data
40 2 DTR1
Output NA
0
COM1
Data
Terminal
Ready
41 2 RTS1
Output NA
0
COM1
Request
To
Send
42 1 RXD2
Input NA
Input
COM2 Receive Data
43 2 TXD2
Output NA
0
COM2
Transmit
Data
44 1 CTS2
Input NA
Input
COM2 Clear To Send
45 2 RTS2
Output NA
0
COM2
Request
To
Send
46 2 RXD3
Input NA
Input
COM3 Receive Data
47 1 TXD3
Output NA
0
COM3
Transmit
Data
(page
48 2 CB_POE
Output Low
1
Socket 0 & 1 Output
Enable
49 2 CB_PWE
Output Low
1
Socket 0 & 1 Write
Enable
50 2 CB_PIOR
Output Low
1
Socket 0 & 1 I/O Read
51 2 CB_PIOW
Output Low
1
Socket 0 & 1 I/O Write
52 2 CB_PCE1
Output Low
1
Socket 0 & 1 Low Byte
Enable
53 2 CB_PCE2
Output Low
1
Socket 0 & 1 High
Byte Enable
-
54 2 CB_PKTSEL
Output NA
1
PSKTSEL 0 = Socket
0 Select / 1 = Socket 1
Select
-
55 2 CB_PREG
Output Low
1
PREG
-
56 1
CB_PWAIT Input Low
Input PWAIT
57 1 CB_PIOIS16 Input Low
Input
IOIS16
-
continued
…