NetBSD-5.0.2/share/man/man4/man4.mac68k/cpi.4

.\"	$NetBSD: cpi.4,v 1.2 2008/05/23 13:05:09 wiz Exp $
.\"
.\" Copyright (c) 2008 Hauke Fath.  All rights reserved.
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.Dd May 18, 2008
.Dt CPI 4 mac68k
.Os
.Sh NAME
.Nm cpi
.Nd parallel printer driver for Creative Systems Inc. Hurdler CPI Nubus card
.\"
.Sh SYNOPSIS
.Cd "cpi* at nubus?"
.\"
.Sh DESCRIPTION
The
.Nm
interface provides access to parallel printer ports.
.\"
.Sh HARDWARE
The
.Nm
interface supports the Creative Systems Inc. Hurdler CPI Nubus card,
which is based on a Zilog Z8536 CIO.
.\"
.Pp
The parallel port on the Hurdler CPI card is wired as follows:
.Bl -column header "Signalxxxxxxxxxxxxxxxxxx" "SubD pin" "Z8536 pin" "Z8536 signal"
.Sy	"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
.El
.Pp
The Z8536 INT line (pin 24) is wired to PB7 (pin 15).
.\"
.Sh SEE ALSO
.Xr autoconf 4 ,
.Xr lpt 4 ,
.Xr nubus 4 ,
.Xr printcap 5
.Pp
.Tn IEEE Standard 1284-1994
.\" .Sh STANDARDS
.\"
.Sh HISTORY
.Nm
first appeared in
.Nx 5.0 .
.\"
.Sh AUTHORS
The
.Nm
driver was written by
.An Hauke Fath
.Aq hauke@NetBSD.org .
.\"
.Sh 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.