cdp68hc68t1 Intersil Corporation, cdp68hc68t1 Datasheet - Page 7

• Manufacturer Part Number: cdp68hc68t1
• Description: Cmos Serial Real-time Clock With Ram And Power Sense/control
• Manufacturer: Intersil Corporation

Programmers Model - Clock Registers
NOTE: X = Don’t care writes, X = 0 when read.
RAM DATA BYTE
HEX ADDRESS
2A
20
21
22
23
24
25
26
31
32
28
29
30
7
12
HR
24
DB7
X
7
X
7
7
TENS 0 TO 5
TENS 0 TO 5
TENS 0 TO 3
TENS 0 TO 1
TENS 0 TO 9
X
TENS 0 TO 5
TENS 0 TO 5
X
6
X
6
6
PM/AM
TENS 0 TO 2
WRITE ONLY REGISTERS
WRITE/READ REGISTERS
READ ONLY REGISTERS
HEX ADDRESS 00-1F
TENS 0 TO 2
D7
7
5
PM/AM
X
5
5
D6
4
X
4
4
CDP68HC68T1
6
X
3
3
3
D5
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
UNITS 0 TO 9
5
UNITS 1 TO 7
2
2
2
BIT
D4
4
1
1
1
D3
DB0
0
0
3
0
ALARM HOURS (01 TO 12 OR 00 TO 23)
D2
HOURS (01 TO 12 OR 00 TO 23
DAY OF WK (01 TO 07) SUNDAY = 1
2
DB7, 1 = 12 HR, 0 = 24 HR
ALARM SECONDS (00 TO 59)
PLUS AM/PM IN 12 HR MODE
ALARM MINUTES (00 TO 59)
STATUS
SECONDS (00 TO 59)
MONTH (01 TO 12) JAN = 1
MINUTES (00 TO 59)
DB = 1 PM, 0 = AM
DAY OF MONTH
D1
1
YEARS (00 TO 99)
PM = 1, AM = 0
INTERRUPT
DATE
CONTROL
DEC = 12
D0
NAME
0
01 TO 28
29
30
31
October 29, 2007
FN1547.8