Parallel Interface; Table Of Connection Signals For Each Mode - Toshiba 4679 User Manual

The two-way parallel interface is compatible with the IEEE1284 compatibility mode and nib-
ble mode.

12-1. Table of Connection Signals for Each Mode

Pin No. Direction
1
2
3
4
5
6
7
8
9
10 Out
11 Out
12 Out
13 Out
14
15
16
17
18 Out
19
20
21
22
23
24
25
26
27
28
29
30
31
32 Out

12. Parallel Interface

Compatibility Mode
In
In
In
In
In
In
In
In
In
In
In
Signal Name
nStorobe
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
nAck
Busy
PError
Select
nAutoFd
N/C
GND
Flame GND
Logic High
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
nInit
nFault
– 48 –
Nibble Mode
Signal Name
HostClk
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
PtrClk
PtrBusy/Data3,7
AckDataReq/Data2,6
Xflag/Data1,5
HostBusy
—
GND
Flame GND
Logic High
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
nInit
nDataAvail/Data0,4