OKI 9400 Manual De Usuario
34 [NOT
USED]
—
—
35
—
from printer
Pulled up to +5V
through 3.3 Kohm
through 3.3 Kohm
36
Sel In
to printer
1284 Active
Parallel Interface Pin Assignments: Nibble Mode
Pin
Signal Name
Direction
Nibble
1
Data Strobe
to printer
Host Clk
2-9
Data Bit n
to printer
Data 1 (LSB) to 8
(MSB)
(MSB)
10 Acknowledge
from
printer Ptrclk
11 Busy
from
printer PtrBusy
12
Paper End
from printer
AckDataReq
13 Select
from
printer Xflag
14
Auto Feed
to printer
HostBusy
15 [not
used]
—
—
16 0V
—
Logic
Ground
17
Chassis Ground
—
Chassis Ground
18
+5V
from printer
Peripheral Logic High
19 0V
—
Chassis
Ground
20-27 0V
—
Signal
Ground
(nStrobe)
28
0V
—
Signal Ground (Data 1-
8)
8)
29
0V
—
Signal Ground (Perror,
Select, nAck)
Select, nAck)
30 0V
—
Signal
Ground
(nAutoFd, nSelectIn,
nInit)
nInit)
31
Input Prime
to printer
nInit
32 Fault
from
printer nDataAvail
33 0V
—
—
34 [NOT
USED]
—
—
35
—
from printer
Pulled up to +5V
through 3.3 Kohm
through 3.3 Kohm
36
Sel In
to printer
1284 Active
USB Interface
436