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Interface
Parallel
96
P1003638-003 TTP 8000 Technical Manual 10/19/2009
Parallel
TTP 8000 series support IEEE-1284 Compatibility Mode and Reverse Nibble Mode.
Figure 21 • IEEE-1284 Cable with Type A and Type C Connectors
Table 11 • Signal names for the parallel port
Note • If you intend to use any other mode than Compatibility Mode, we recommend you to
get the documents for the IEEE-1284 standards, and study them thoroughly.
Pin Host
IEEE1284-A
(D-Sub)
Direction
Pin Printer
IEEE1248-C
Compatible Signal
Names
Nibble and
Byte Mode
Signal
Names
1
Ö
15 nStrobe HostClk
2-9
Ö
6-13 Data Data
10
Õ
3 nAck PtrClk
11
Õ
1 Busy PtrBusy
12
Õ
5 PError AckDataReq
13
Õ
2 Select Xflag
14
Ö
17 nAutoFd HostBusy
15
Õ
4 nFault nDataAvail
16
Ö
14 nInit nInit
17
Ö
16 nSelectIn IEEE 1284 Active
18-25
GND
19-35 Ground Ground
+Ö
18 Host Logic High
.Õ
36 Peripheral Logic High