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Technical Specifications
A-7
Dove
Rev. C
A5 size appa.mif
10/28/98 Pass 0
R
Proof Sign-off:
Nishi _______
<leadername> _______
<editorname> _______
nstrobe/HostClk
DATA 1 to DATA 8 (bidirectional, but may always be an input if ECP
or EPP mode is not supported)
19 - 30 GND
31 IN nlnit nReverse
Request
32 OUT nFault nDataAvail nPeriphRequest
33 GND
34 NC
35 OUT +5V
36 IN nSelectln IEEE1284 Active
Compatibility mode: Latch pulse used to read in print data.
When low, DATA is valid.
Negotiation phase: Latch pulse used to read in extensibility
request values.
Nibble mode: Always high.
ECP mode: Used to transfer data and addresses from
the host to the printer with handshaking
via PeriphAck (Busy).
Compatibility mode: Forward channel data.
Negotiation phase: Extensibility request value.
Nibble mode: Not used.
ECP mode: Bidirectional data.
Pin No. Direction IEEE 1284-B connector
Compatibility Nibble ECP