12-2
LED signaling and “beep” codes
PC-500 user’s manual
Table 12-2
Phoenix BIOS beep codes
Diagnostic
port output
Beep
codes Description of test or failure
01h
80286 register test in-progress
02h
1-1-3
CMOS write/read test in-progress
03h
1-1-4
BIOS ROM checksum in-progress
04h
1-2-1
Programmable interval timer test in-progress or failure
05h
1-2-2
DMA initialization in-progress or failure
06h
1-2-3
DMA page register write/read test in-progress or
failure
08h
1-3-1
RAM refresh verification in-progress or failure
09h
1st 64K RAM test in-progress
0Ah
1-3-3
1st 64K RAM chip or data line failure multi-bit
0Bh
1-3-4
1st 64K RAM odd/even logic failure
0Ch
1-4-1
1st 64K RAM address line failure
0Dh
1-4-2
1st 64K RAM parity test in-progress or failure
10h
2-1-1
1st 64K RAM chip or data line failure-bit 0
11h
2-1-2
1st 64K RAM chip or data line failure-bit 1
12h
2-1-3
1st 64K RAM chip or data line failure-bit 2
13h
2-1-4
1st 64K RAM chip or data line failure-bit 3
14h
2-2-1
1st 64K RAM chip or data line failure-bit 4
15h
2-2-2
1st 64K RAM chip or data line failure-bit 5
16h
2-2-3
1st 64K RAM chip or data line failure-bit 6
17h
2-2-4
1st 64K RAM chip or data line failure-bit 7
18h
2-3-1
1st 64K RAM chip or data line failure-bit 8
19h
2-3-2
1st 64K RAM chip or data line failure-bit 9
1Ah
2-3-3
1st 64K RAM chip or data line failure-bit A
1Bh
2-3-4
1st 64K RAM chip or data line failure-bit B
1Ch
2-4-1
1st 64K RAM chip or data line failure-bit C
1Dh
2-4-2
1st 64K RAM chip or data line failure-bit D
1Eh
2-4-3
1st 64K RAM chip or data line failure-bit E
1Fh
2-4-4
1st 64K RAM chip or data line failure-bit F
20h
3-1-1
Slave DMA register test in-progress or failure
21h
3-1-2
Master DMA register test in-progress or failure
22h
3-1-3
Master interrupt mask reg. test in-progress or failure
23h
3-1-4
Slave interrupt mask reg. test in-progress or failure
25h
N/A
Interrupt vector loading in-progress
27h
3-2-4
Keyboard controller test in-progress or failure
Summary of Contents for PC-500
Page 7: ...Notice to user PC 500 user s manual ...
Page 17: ...xii Contents PC 500 user s manual ...
Page 23: ...About this manual PC 500 user s manual ...
Page 25: ...Overview of Section 1 PC 500 user s manual ...
Page 35: ...2 2 Quick start PC 500 user s manual Figure 2 1 PC 500componentdiagram ...
Page 36: ...2 3 PC 500 user s manual Quick start Figure 2 2 PC 500center to centerholedimensions ...
Page 53: ...3 10 SETUP programs PC 500 user s manual ...
Page 57: ...4 4 Save and run programs PC 500 user s manual ...
Page 59: ...Overview of Section 2 PC 500 user s manual ...
Page 71: ...5 12 Serial ports PC 500 user s manual ...
Page 75: ...6 4 LPT1 parallel port PC 500 user s manual ...
Page 81: ...7 6 Console devices PC 500 user s manual ...
Page 89: ...10 2 IRQ routing and opto IRQs PC 500 user s manual Figure 10 1 Interruptroutingmatrix ...
Page 103: ...11 12 EZ I O PC 500 user s manual ...
Page 117: ...14 2 PC 104 expansion PC 500 user s manual ...
Page 119: ...15 2 SCSI PC 500 user s manual ...
Page 121: ...16 2 Ethernet PC 500 user s manual ...
Page 123: ...Overview of Section 3 PC 500 user s manual ...
Page 127: ...17 4 Watchdog timer and hardware reset PC 500 user s manual ...
Page 143: ...19 8 Transferring files remote disks PC 500 user s manual ...
Page 173: ...22 22 CPU power management PC 500 user s manual ...
Page 177: ...23 4 Troubleshooting PC 500 user s manual ...
Page 179: ...Overview of Section 4 PC 500 user s manual ...
Page 225: ...B 28 Software utilities PC 500 user s manual ...