Oki Microline 3320 - Loading Paper

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Note: From the illustration above, you can see that the command and the command response are output at the same time. This is because
the bit 0 to bit 3 of OPRXD are fixed so that the response can be returned before decoding the command.
OPTXD OPCLK OPRXD OPCLR-N
1 2 3 2
3 1
6
7
5
or
8
bit0 bit7
Command (first)
Command (second)
Command response (first)
Command response (second)
Note
bit0 bit7
Reset within BU5148S
Power ON
Write instruction for LSI
reset
LSI write for LED data,
etc.
Read instruction for
data read
Response check
for OK or NG
Error notification
Instruction for
retransmission
1 2 3 4
7 8
5 6
NO
YES