Operation Manual

Part 2: Product Specifications
BJC-7100
2-18
4µs (When HS mode is invalid)
Min.0.8µs
0.5µs
Min.
0.5µs
Min.
STROBE
Data 1-8
BUSY
ACKNLG
0.5µs
Min.
Printer Busy
0000 0000
Ptr Host
Bit0 Bit4
Bit1 Bit5
Bit3 Bit7
Bit2 Bit6
1284 Active
Ack Data Req
Data (1 to 8)
Host Busy
Host Clk
Ptr Clk
Ptr Busy
nData Avail
Xflag
TP TP TP
Invalid
With data
Nibble mode
Support
TP: minimum set up
0001 0000
1284 Active
Data (1 to 8)
Host Ack
Host Clk
Periph Clk
Xflag
TP
TP
TP
Periph Ack
nPeriph Req
Byte0
Byte1
nCmd nCmd
ECP mode Support
TP
TP: minimum set up
nAck Reverse
Figure 2-8 Compatible Mode
Figure 2-9 Nibble Mode
Figure 2-10 ECP Mode