A-4
Technical data
PC-500 user’s manual
Table A-2
PC-500 I/O map
Hex range
Function
X000h-X0A7h*
System I/O functions
X0A8h-X0AFh*
Red LED Control: D7 = 1 (LED on); D7 = 0
(LED off). Also functions as default status register.
X0A8h-X0AFh
82C602A buffer enable (read)
X0ACh-X0AFh
Green LED Control: D7 = 1 (LED on); D7 = 0
(LED off)
X0B0h-X0FFh
System I/O functions
X100h-X207h
Off–card I/O space
X208h-X20Bh
OctaGlue register 0 read/write access
X20Ch-X20Fh
OctaGlue register 1 read/write access & watchdog
IOR strobe
X210h-X213h
OctaGlue register 0 (RO) (SEEP CLK)
X214h-X217h
Serial EEPROM read access & watchdog IOR strobe
X2F8h-X2FFh
COM2, configurable in SETUP
X378h-X37Bh
Bidirectional parallel port (LPT1), configurable in
SETUP
X300h-X31Fh
Ethernet
X320h-X33Fh
Set by IORGSEL A=1 and IORGSEL B=1,
(X328h-X32Fh is free)
X340h-X35Fh
Set by IORGSEL A=1 and IORGSEL B=0,
(X348h-X34Fh is free)
X3F8h-X3FFh
COM1, configurable in SETUP
X320h-X327h
COM5 default configurable with SETIRQ. Alternate
base addresses are 12F, 348-34F, and 148-HF.
X330h-X337h
EZ I/O default configurable with SETIRQ. Alternate
base addresses are 130-133, 150-153, and 350-353.
Last four addresses are reserved.
X338h-X33Fh
Interrupt status default location. Alternate addresses
are 138-13F, 158-15F, and 358-35F.
X340h-X35Fh
Default SCSI I/O space
* = default port addresses
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 ...