Intermec 6100 参考指南

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Registers in CMOS RAM are provided as part of a realĆtime clock interface.

These registers are accessed by writing a register number to port 70h, then eiĆ

ther reading or writing port 71h to access the contents of the specified register.

The first few registers are realĆtime clock registers.  In the list that follows, NoĆ

randĆspecific register definitions are 

.  The remaining regisĆ

ters are defined by PC compatibility standards.

Table 7Ć8 

Register Name

Assignment

RTC_SECONDS

equ 0

RTC_SECONDS_ALARM

equ 1

RTC_MINUTES

equ 2

RTC_MINUTES_ALARM

equ 3

RTC_HOURS

equ 4

RTC_HOURS_ALARM

equ 5

RTC_WEEKDAY

equ 6

RTC_DAY

equ 7

RTC_MONTH

equ 8

RTC_YEAR

equ 9

RTC_REG_A

equ 10

RTC_REG_B

equ 11

RTC_REG_C

equ 12

RTC_REG_D

equ 13

RTC_CENTURY

equ 032h

CMOS_DIAGS

equ 0Eh

CMOS_SHUTDOWN

equ 0Fh

SD_NORMAL_RESET

equ 0

SD_REAL_MODE_ENTRY

equ 1

SD_BOOTSTRAP

equ 4

SD_EOI_JMP

equ 5

SD_FAR_JMP

equ 6

SD_BLOCK_MOVE1

equ 7

SD_MEM_TEST

equ 8

SD_BLOCK_MOVE2

equ 9

SD_FAR_JMP2

equ 10

SD_IRET

equ 11

SD_FAR_RET

equ 12

CMOS_DISKETTE1_TYPE

equ 10h

CMOS_DISKETTE2_TYPE

equ 11h

CMOS_FDISK_TYPE

equ 12h

CMOS_EQUIPMENT

equ 14h

CMOS_BASE_MEMLO

equ 15h

; conventional memory size

CMOS_BASE_MEMHI

equ 16h

CMOS_XTD_MEMLO

equ 17h

; extended memory size

CMOS_XTD_MEMHI

equ 18h

CMOS_FDISK1_TYPE

equ 19h