A
Technical Specifications
A-9
Cardinal U/G
Rev. C
A5 size
APPA.FM
11/6/98
Pass 0
R
Proof Sign-off:
Kimura
_______
Nishi
_______
Hoadley
_______
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
+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