rs5c62 RICOH Co.,Ltd., rs5c62 Datasheet - Page 10

• Manufacturer Part Number: rs5c62
• Description: Real-time Clock
• Manufacturer: RICOH Co.,Ltd.

6
RP/RF/RS5C62
1. Addressing
FUNCTIONAL DESCRIPTION
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
F
*
*
*
*
A3 A2 A1 A0
1) R/W bits can be read and written. R/O bits can only be read. W/O bits can only be written.
2) It is no problem to attempt writing to R/O bits and blank bits, but the attempt will fail.
3) If W/O bits and blank bits are read, the returned value is 0.
4) The control registers 1, 2, and 3 have the same address assignment for BANK0 and BANK1.
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Address Bus
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1 sec. Counter
10 sec. Counter
1 min. Counter
10 min. Counter
1 hour Counter
10 hour Counter
day-of-the-week Counter R/W
1 day Counter
10 day Counter
1 month Counter R/W
10 month Counter R/W
1 year Counter
10 year Counter
Control Reg. 1
Control Reg. 2
Control Reg. 3
Description
W/O WTEN ALEN
W/O TSTA
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/O
BANK 0 (BANK=0)
MO
BSY
M
Y
D3
H
D
S
Y
80
8
8
8
8
8
8
CTFG ALFG
TSTB WTRST
MO
M
W
Y
S
M
D2
H
D
Y
S
40
40
4
40
4
4
4
4
4
4
or H
MO
TMR
P/A
M
D
S
M
W
Y
D1
H
D
Y
S
20
20
20
2
20
2
2
2
2
2
20
2
BANK Control Reg. 1
MO
XSTP
MO
M
H
D
Y
S
M
W
D0
H
D
S
Y
10
10
10
10
1
10
1
1
1
1
1
10
1
Cyclic interrupt select Reg. W/O
Adust Reg.
1 min. alarm Reg.
10 min. alarm Reg.
1 hour alarm Reg.
10 hour alarm Reg.
12/24 select Reg.
Leap Year Reg.
Timer Clock Select Reg.
Control Reg. 2
Control Reg. 3
Description
BANK 1 (BANK=1)
W/O
W/O
W/O
W/O WTEN ALEN
W/O TSTA
R/W AM
R/W
R/W
R/W
R/W
R/W
R/W
R/O
R/O
R/O
TM
BSY
AH
CT
D3
3
8
8
3
CTFG ALFG
TSTB WTRST
AM
AM
TM
AH
LYE
CT
D2
40
2
4
4
2
or AH
AP/A
AM
TMR
AM
TM
AH
CT
LY
D1
1
20
1
2
2
1
20
TMFG
BANK
12/24
AM
XSTP
AH
AM
TM
CT
ADJ
AH
LY
D0
10
10
0
0
1
1
0