Appendix ep-3vca2, A-5 rtc & cmos ram map – EPoX Computer EP-3VCA2 User Manual

Page 55

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Appendix

EP-3VCA2

A-3

6

FLOPPY DISK (SMC CHIP).

7

PARALLEL port 1.

8

RTC clock.

9

Available.

10

Available.

11

Available.

12

PS/2 Mouse.

13

MATH coprocessor.

14

Onboard HARD DISK (IDE1) channel.

15

Onboard HARD DISK (IDE1) channel.

A-5 RTC & CMOS RAM MAP

RTC & CMOS:
00

Seconds.

01

Second alarm.

02

Minutes.

03

Minutes alarm.

04

Hours.

05

Hours alarm.

06

Day of week.

07

Day of month.

08

Month.

09

Year.

0A

Status register A.

0B

Status register B.

0C

Status register C.

0D

Status register D.

0E

Diagnostic status byte.

0F

Shutdown byte.

10

FLOPPY DISK drive type byte.

11

Reserve.

12

HARD DISK type byte.

13

Reserve.

14

Equipment type.

15

Base memory low byte.

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