OX9162
OXFORD SEMICONDUCTOR LTD.
Mode
Dir1
Name
Description
Parallel
Parallel port
85
Local Bus
N/A
I
ACK#
Acknowledge (SPP mode). ACK# is asserted (low) by the
peripheral to indicate that a successful data transfer has
taken place.
I
I
I
INTR#
PE
BUSY
Identical function to ACK# (EPP mode).
77
78
Paper Empty. Activated by printer when it runs out of paper.
Busy (SPP mode). BUSY is asserted (high) by the peripheral
when it is not ready to accept data
I
WAIT#
Wait (EPP mode). Handshake signal for interlocked IEEE
1284 compliant EPP cycles.
87
OD
SLIN#
Select (SPP mode). Asserted by host to select the peripheral
O
ADDRSTB#
Address strobe (EPP mode) provides address read and write
strobe
79
82
88
I
I
SLCT
ERR#
INIT#
Peripheral selected. Asserted by peripheral when selected.
Error. Held low by the peripheral during an error condition.
Initialise (SPP mode). Commands the peripheral to initialise.
OD
O
OD
INIT#
AFD#
Initialise (EPP mode). Identical function to SPP mode.
Auto Feed (SPP mode, open-drain)
89
90
O
OD
DATASTB#
STB#
Data strobe (EPP mode) provides data read and write strobe
Strobe (SPP mode). Used by peripheral to latch data
currently available on PD[7:0]
O
WRITE#
PD[7:0]
Write (EPP mode). Indicates a write cycle when low and a
read cycle when high
Parallel data bus
66,67,68,71,
72,73,74,76
I/O
Data Sheet Revision 1.1 PRELIMINARY
Page 6
OXFORD [ OXFORD SEMICONDUCTOR ]
