Figure 5.8b data transmission timing (nibble mode) – FUJITSU C145-C037-01EN User Manual

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Data Available (*)

X Flag

Ack Data Req

Printer Busy

Host Busy
(from CPU)

Printer Clock

Data bit 4

Data bit 5

Data bit 6

Data bit 7

Data bit 0

Data bit 1

Data bit 2

Data bit 3

1284 Active
(from CPU)

* Data Available is assigned for the cable.

Figure 5.8b Data transmission timing (nibble mode)