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TM-T90
Specification
(STANDARD)
24 23
2.1.2.3 Interface pin assignments for each mode
Pin
Source
Compatibility Mode
Nibble Mode
Byte Mode
1 Host
nStrobe
HostClk
HostClk
2 Host/Ptr
Data0(LSB)
Data0(LSB)
Data0(LSB)
3 Host/Ptr
Data1
Data1
Data1
4 Host/Ptr
Data2
Data2
Data2
5 Host/Ptr
Data3
Data3
Data3
6 Host/Ptr
Data4
Data4
Data4
7 Host/Ptr
Data5
Data5
Data5
8 Host/Ptr
Data6
Data6
Data6
9 Host/Ptr
Data7(MSB)
Data7(MSB)
Data7(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
ND
ND
16
GND
GND
GND
17
FG
FG
FG
18 Printer
Logic-H
Logic-H
Logic-H
19
GND
GND
GND
20
GND
GND
GND
21
GND
GND
GND
22
GND
GND
GND
23
GND
GND
GND
24
GND
GND
GND
25
GND
GND
GND
26
GND
GND
GND
27
GND
GND
GND
28
GND
GND
GND
29
GND
GND
GND
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
*NC: Not Connected
ND: Not Defined