MC68HC68T1 Datasheet, PDF (8/26 Pages) Motorola, Inc – Real-Time Clock plus RAM with Serial Interface

HEXADECIMAL
$00
32 BYTES GENERAL–PURPOSE USER
T
H
RAM
R
U
READ ADDRESSES ONLY
$1F
$20
T
H
CLOCK/CALENDAR
R
U
READ ADDRESSES ONLY
$32
$33
T
H
NOT USED
R
U
$7F
$80
32 BYTES GENERAL–PURPOSE USER
T
H
RAM
R
U
WRITE ADDRESSES ONLY
$9F
$A0
T
CLOCK/CALENDAR
H
R
WRITE ADDRESSES ONLY
U
$B2
SECONDS
MINUTES
HOURS
DAY OF THE WEEK
DATE OF THE MONTH
MONTH
YEAR
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
STATUS REGISTER
CLOCK CONTROL REGISTER
INTERRUPT CONTROL REGISTER
HEXADECIMAL
$20
$21
$22
$23
$24
$25
$26
$27
$28
$29
$2A
$2B
$2C
$2D
$2E
$2F
$30
$31
$32
SECONDS
MINUTES
HOURS
DAY OF THE WEEK
DATE OF THE MONTH
MONTH
YEAR
NOT USED
SECONDS ALARM
MINUTES ALARM
HOURS ALARM
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
CLOCK CONTROL REGISTER
INTERRUPT CONTROL REGISTER
HEXADECIMAL
$A0
$A1
$A2
$A3
$A4
$A5
$A6
$A7
$A8
$A9
$AA
$AB
$AC
$AD
$AE
$AF
$B0
$B1
$B2
Figure 5. Address Map
MC68HC68T1
8
MOTOROLA