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Data Transmission Timing
User’s Manual C-7
INTERFACE
INFORMATION
Reverse data transfer phase in nibble mode (data transfer from printer
to host)
Figure C–2 Data transmission timing
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.
DL6400/6600 Book Page 7 Thursday, September 21, 2000 7:52 PM