Oki B431L6

Appendix A Centronics Parallel Interface
Oki Data CONFIDENTIAL
44983601TH Rev.1
Appendix A-3 /
(5) Specication
Power OFF
Power ON
DISABLE
PError
H
L
H
L
H
L
H
L
H
L
nAck
Busy
nFault
Select
PEND
Receive
DMA
Printer
Status
LSI
initialization
F/W
initialization
(6) TimeChart
a)AtthePowerON(MenuSetting:PARALLEL=ENABLE)
Printer
Status
Power OFF
Power ON
Receive DMA Start
Notice for transfer
to the Online
Idling
PError
H
L
H
L
H
L
H
L
H
L
nAck
Busy
nFault
Select
PEND RUNNING
LSI
initialization
F/W
initialization
Receive
DMA
b)AtthePowerON(MenuSetting:PARALLEL=ENABLE)
Item Contents
Mode Compatiblemode,Nibblemode,andECPmode
DataBitLength 8bit(Compatiblemode)
InputPrime Enable/Disable
ReceiveBuffer 8K,20K,50k,100k,1MByte
Control Thehandshakecontrolisperformedineachmode.
DatareceivedfromthehostisstoreintheReceivebuffer.
Busycontrolisperformed.
Signalreadcontrolisperformed.