NAME
cpi
- parallel printer driver for Creative Systems Inc. Hurdler CPI Nubus card
SYNOPSIS
cpi* at nubus?
DESCRIPTION
The
cpi
interface provides access to parallel printer ports.
HARDWARE
The
cpi
interface supports the Creative Systems Inc. Hurdler CPI Nubus card,
which is based on a Zilog Z8536 CIO.
The parallel port on the Hurdler CPI card is wired as follows:
Signal SubD pin Z8536 pin Z8536 signal
/STROBE Strobe 1 22 PC3
D0 2 33 PA0
D1 3 32 PA1
D2 4 31 PA2
D3 5 30 PA3
D4 6 29 PA4
D5 7 28 PA5
D6 8 27 PA6
D7 9 26 PA7
/ACK 10 21 + 11 PC2 + PB3
BUSY 11 19 + 14 PC0 + PB6
PE Paper Error 12 20 PC1
SEL Select 13 13 PB5
/AUTOFD Auto Feed 14 12 PB4
/FAULT 15 9 PB1
/RESET 16 8 PB0
/SELIN Select In 17 10 PB2
The Z8536 INT line (pin 24) is wired to PB7 (pin 15).
SEE ALSO
autoconf(4),
lpt(4),
nubus(4),
printcap(5)
IEEE Standard 1284-1994
HISTORY
cpi
first appeared in
NetBSD5.0.
AUTHORS
The
cpi
driver was written by
Hauke Fath
<hauke@NetBSD.org>.
CAVEATS
The Hurdler CPI Nubus card does not use a TTL buffer to
drive the parallel interface.
Instead, the card's Z8536 CIO drives the printer port directly.
Printers terminating the parallel interface with less
than 2 kOhms may cause permanent damage to the Z8536 CIO.