IBM Personal System/2 60 User Manual

CMOS RAM Configuration
The
following
shows
the
bit
definitions
for
the
CMOS
RAM
configuration
bytes.
Diagnostic Status Byte (Hex 00E)
Function
Real-Time Clock Chip Power
Configuration Record and Checksum Status
Incorrect Configuration
Memory Size Miscompare
Fixed Disk Controller/Drive C Initialization Status
Time Status Indicator
Adapter Configuration Miscompare
Adapter ID Time-Out
OesANoOhOAD™
Figure 3-14. Diagnostic Status Byte
BIt7
BRS
Bit4
Bit3
Bit2
Bit 1
Bit 0
When set to 1, this bit indicates the real-time clock chip
lost power.
When this bit is set to 1, the checksum is incorrect.
This
is
a
check,
at
power-on
time,
of
the
Equipment
byte.
When
set
to
1,
the
configuration
information
is
incorrect.
Power-on
checks
require
that
at
least
one
diskette
drive
be
installed
(bit
0
of
the
Equipment
byte,
hex
014,
is
set
to
1).
When set to 1, this bit indicates the power-on check
determined that the memory size is not the same as in the
configuration record.
When set to 1, this bit indicates that the controller or drive
C failed initialization, which prevents the system from
attempting a power-on reset.
When set to 0, this bit indicates the time is valid. When
set to 1, this bit indicates the time is invalid.
This bit indicates if the installed adapters match the
configuration information. When this bit is set to 1, the
adapters do not match the configuration information.
When set to 1, this bit indicates a time-out occurred while
an adapter ID was being read.
3-16 Model 60 System Board — October 1990

IBM Personal System/2 60 Specifications

General

Brand	IBM
Model	Personal System/2 60
Category	Desktop
Language	English