MC68HC908LJ24 Datasheet, PDF (59/464 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Memory Map
Input/Output (I/O) Section
Addr.
$0044
$0045
$0046
$0047
$0048
$0049
$004A
$004B
$004C
$004D
Register Name
Read:
RTC Status Register
(RTCSR)
Write:
Reset:
Read:
Alarm Minute register
(ALMR)
Write:
Reset:
Read:
Alarm Hour register
(ALHR)
Write:
Reset:
Read:
Second Register
(SECR)
Write:
Reset:
Read:
Minute Register
(MINR)
Write:
Reset:
Read:
Hour Register
(HRR)
Write:
Reset:
Read:
Day Register
(DAYR)
Write:
Reset:
Read:
Month Register
(MTHR)
Write:
Reset:
Read:
Year Register
(YRR)
Write:
Reset:
Read:
Day-Of-Week Register
(DOWR)
Write:
Reset:
Bit 7
ALMF
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
YR7
U
0
0
6
CHRF
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
YR6
U
0
0
5
DAYF
0
AM5
U
0
0
SEC5
U
MIN5
U
0
0
0
0
0
0
YR5
U
0
0
4
HRF
0
AM4
U
AH4
U
SEC4
U
MIN4
U
HR4
U
DAY4
U
0
0
YR4
U
0
0
3
MINF
0
AM3
U
AH3
U
SEC3
U
MIN3
U
HR3
U
DAY3
U
MTH3
U
YR3
U
0
0
2
SECF
1
TB1F
Bit 0
TB2F
0
0
0
AM2
AM1
AM0
U
U
U
AH2
AH1
AH0
U
U
U
SEC2 SEC1 SEC0
U
U
U
MIN2 MIN1 MIN0
U
U
U
HR2
HR1
HR0
U
U
U
DAY2 DAY1 DAY0
U
U
U
MTH2 MTH1 MTH0
U
U
U
YR2
YR1
YR0
U
U
U
DOW2 DOW1 DOW0
U
U
U
U = Unaffected
X = Indeterminate
= Unimplemented
R = Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 8 of 13)
MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA
Memory Map
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Data Sheet
59