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Rev. 1.00
- 9 -
GTP-250
1-2-2 Parallel Interface (IEEE1284)
Pin No.
Source
Compatibility Mode
Nibble Mode
Byte Mode
1 Host nStrobe
HostClk HostClk
2
Host / Printer
Data 0 (LSB)
-
Data 0 (LSB)
3
Host / Printer
Data 1
-
Data 1
4
Host / Printer
Data 2
-
Data 2
5
Host / Printer
Data 3
-
Data 3
6
Host / Printer
Data 4
-
Data 4
7
Host / Printer
Data 5
-
Data 5
8
Host / Printer
Data 6
-
Data 6
9
Host / Printer
Data 7 (MSB)
-
Data 7 (MSB)
10 Printer
nAck
PtrClk
PtrClk
11 Printer
Busy
PtrBusy
/Data3,7 PtrBusy
12 Printer
Perror AckDataReq/Data2,6
AckDataReq
13 Printer
Select
Xflag
/Data1,5 Xflag
14 Host nAutoFd
HostBusy HostBusy
15
NC
NC
NC
16
GND
GND
GND
17
FG
FG
FG
18 Printer Logic-H
Logic-H
Logic-H
19~30
GND
GND
GND
31 Host
nInit
nInit
nInit
32 Printer
nFault nDataAvail /Data0,4
nDataAvail
33
GND
ND
ND
34 Printer DK_Status
ND
ND
35 Printer
+5V
ND
ND
36 Host nSelectIn
1284-Active 1284-Active
Drawer
kick-out
connector
Power
supply
connector
Interface connector