Table 6-17 Continued

I/O Address (Hex)

System Function (Shipping Configuration)

201

 

Joystick (decoded in ESS1688)

202

- 21F

Unused

220

- 22F

Entertainment audio

230

- 26D

Unused

26E - 26

National 87334 "Super IO" controller in expansion

 

 

base/convenience base

278

- 27F

Unused

280

- 2AB

Unused

2A0 - 2A7

Expansion base/convenience base PC Card DMA

 

 

selection, hard drive reset, IDE select, MultiBay

 

 

device identification

2A8 - 2E7

Unused

2E8 - 2EF

Reserved serial port

2F0 - 2F7

Unused

2F8 - 2FF

Infrared port

300

- 31F

Network interface in expansion base/convenience

 

 

base (default; alternate is 320, 340, or 360h)

320

- 36F

Unused

370

- 377

Secondary diskette controller (in expansion

 

 

base/convenience base when a diskette drive is

 

 

installed in the CPU)

378

- 37F

Parallel port (LPT1/default)

380

- 387

Unused

388

- 38B

FM synthesizer - OPL3

38C - 3AF

Unused

3B0 - 3BB

VGA

3BC - 3BF

Reserved (parallel port/no EPP support)

3C0 - 3DF

VGA

3E0 - 3E1

PC Card controller in CPU

3E2 - 3E3

PC Card controller in expansion base/convenience

 

 

base

3E8 - 3EF

Internal modem

3F0 - 3F7

"A" diskette controller

3F8 - 3FF

Serial port (COM1/default)

CF8 - CFB

PCI configuration index register (PCIDIV0-1)

CFC - CFF

PCI configuration data register (PCIDIV0-1)

Specifications 6-13

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Compaq E500S, V300 manual CF8 CFB, Cfc Cff