ZiLOG System 8000 Hardware Reference Manual

HRM
4CH
4£H
Zilog
REGISTER
Status 1
Interrupt Control
HRM
DESCRIPTION
Bits ° to 3 define the
number of retries for a
read or write command.
Bits 8 to 15 define the
number of blocks or files
that have been skipped
during a skip command.
This is the master inter-
rupt control register.
Another table lists the
bit definitions.
Table
4-19
Tape Controller Jumper Selection
for Base Address
JUMPER PURPOSE
CONNECTION AND
GROUP
(E)
RESULT
E1,
E2,
E3
Set to
expect either a
£1
to
£2
(normal) :
low
or high bit SAD15
bit
SAD15
low
E2 to
£3:
bit SAD15 high
£4,
£5,
E6
Set
to expect either a £4 to
E5
(normal) :
low or
high bit SAD14
bit SAD14
low
£5 to
£6:
bit SAD14 high
£7,
E8,
E9
Set to expect either a
£7 to
E8
(normal) :
low or high bit SAD13
bit SAD13 low
£8 to
E9:
bit SAD13 high
E10,E11,E12
Set to
expect either a
E10
to £11
(normal):
low or
high bit
SAD12
bit
SAD12 low
E 11
to E12:
bit SAD12 high
E13,E14,E15
Set
to expect either a
E13
to E14
(normal) :
low or high bit SAD11
bit
SAD11
low
E14
to
E15:
bit
SAD 11
high
4-48
Zilog
4-48

ZiLOG System 8000 Specifications

General

Brand	ZiLOG
Model	System 8000
Category	Desktop
Language	English