Byte Mode - Samsung SRP-270 Operator's Manual

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

Byte Mode

HostClk
Data 0 (LSB)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (MSB)
PtrClk
PtrBusy
AckDataReq
Xflag
HostBusy
NC
GND
FG
Logic-H
GND
nInit
nDataAvail
ND
ND
ND
1284-Active