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Centronics Parallel Interface
A - 3
OKIPAGE 16n
Service Manual, P/N 59274401
6) Timing charts
Data receiving timing
DATA 1 ~ 8
DATA STROBE
BUSY
ACK
1
µ
s min
1
µ
s min
1.63 ~ 3.26
µ
s
1 ~ 500
µ
s
0 ~ 0.5
µ
s
1.63
µ
s
3.26
µ
s
4) Signal level
• LOW
:
0 V to +0.8 V
• HIGH
:
+2.4 V to +5.0 V
5) Specifications
Item
Description
Mode
Compatibility mode, Nibble mode, ECP mode
Data bit length
8 bits: Compatibility mode, 4 bits: Nibble mode, 9 bits: ECP mode
Input prime
Valid/Invalid
Receive buffer
8K, 20K, 50K, 100K, 1M Bytes
Control
Handshaking control is performed in each mode.
Data received from the host is stored in the receive buffer.
Busy control is performed.
Signal lead control is performed.
Содержание Okipage 16n
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