IBM PC CONVERTIBLE

= 0070
= OOll
= 0000
= 0001
= 0002
= 0003
= 0004
= 0005
= 0006
=
0007
= 0008
= 0009
OOOA
0080
=
OOOB
= 0080
0040
0020
0010
0004
0002
0001
= OOOC
= 0080
= 0040
0020
= 0010
= 0000
= 0080
= OOOE
= 0080
= 0040
= 0020
= 0010
= 0008
= 0004
= 0002
= 0001
*********************************************************************
GLOBAL EQUATES FOR REAL TIME CLOCK
*********************************************************************
RTC REGISTER INDEX PORT
RTCILPORT
EQU
070H
RTC REGISTER DATA PORT
EQU
OllH
RTC TIME,DATE, AND ALARM REGISTERS
RTCTSEC
RTCASEC
RTCTMIN
RTLJ\MIN
RTCTHRS
RTCAHRS
RTCWDAY
RTCMOAY
RTCMON
RTCYEAR
RTC STATUS REGISTER
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
o
1
2
3
4
5
6
7
8
9
REAL TIME CLOCK IX REG PORT
REAL TIME ClK DATA REG PORT
TIME SECONDS REG ADDR
ALARM SECONDS REG ADDR
TIME MINUTES REG ADOR
ALARM MINUTES REG ADDR
TIME HOURS REG ADDR
ALARM HOURS REG AD DR
DAY OF WEEK (SUNDAY 1)
DAY OF MONTH
MONTH
YEAR
RTCUP_STAT
RTCUIP
EQU
EQU
10 ; CLOCK UPDATE STATUS REG AD DR
080H ; UPDATE IN PROGRESS BIT
RTC INTERRUPT AND MODE SET REGISTER
RTCMODE
SELClOCK
PI
E_ENABlE
AI E_ENABlE
UI E_ENABlE
SELBIN
SEL24HR
SELDAYLIGHT
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
11
080H
040H
020H
OIOH
004H
002H
OOIH
RTC INTERRUPT STATUS REGISTER
RTCINLSTAT
RTCIRQ
PLINT
Al_INT
UE_INT
EQU
EQU
EQU
EQU
EQU
12
080H
040H
020H
OIOH
RTC CONDITION STATUS REGISTER
RTCCOND_STAT EQU
VALID_TIME EQU
RTC DIAG_STATUS FLAGS ---
RTCDIAG_STAT EQU
RTCTIMLBAD EQU
BAD_RTCS I G EQU
BAD_STOR_CKSUM EQU
lCD...Al LFAlLED EQU
lCD_CHANGE EQU
RTCJAI lED EQU
LCO_NOT...ACTIVE EQU
DSKT...ACTIVE EQU
13
OBOH
14
080H
040H
020H
OlOH
08H
04H
02H
OIH
MODE REG ADDR
SET CLOCK BIT
PERIODIC INTERRUPT ENABLE
ALARM INTERRUPT ENABLE
UPDATE ENDED IRPT ENABLE
SET BINARY MODE
SET 24 HOUR MODE
SET DAYLIGHT SAVINGS MODE
INTERRUPT STATUS REG AODR
INTERRUPT REQUEST SET
PERIODIC REQUEST
ALARM REQUEST
UPDATE ENDED REQUEST
RTC CONDITION STATUS
RTC HAS NOT lOST POWER
DIAG STATUS BYTE IN RTC RAM
STANDBY POWER lOST FLAG
REAL TIME ClK SIGNATURE BAD
BASE 12BK STG CHECKSUM BAD
LCD ALT DISPLAY MODE FAilED
LCD CONFIGURATION CHANGED
REAL TIME ClK DID NOT UPDATE
OR VALUES OUT OF LIMITS
LCD NOT ACT WHEN SUSPENDED
DSKT WAS ACT AT SUSPEND TIME
ROM BIOS 2-11