RS5C348A RICOH Co.,Ltd., RS5C348A Datasheet - Page 11

• Manufacturer Part Number: RS5C348A
• Description: 4-wire Serial Interface Real-time Clock
• Manufacturer: RICOH Co.,Ltd.

Rev.2.01
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 0 1 0 1
6 0 1 1 0
7 0 1 1 1
8 1 0 0 0
9 1 0 0 1
A 1 0 1 0
B 1 0 1 1
C 1 1 0 0
D 1 1 0 1
E 1 1 1 0
F 1 1 1 1
Address Mapping
Address
A3A2A1A0
Notes:
* 1) All the data listed above accept both reading and writing.
* 2) The data marked with "-" is invalid for writing and reset to 0 for reading.
* 3) When the XSTP bit is set to 1 in Control Register 2, all the bits are reset to 0 in Oscillation Adjustment
* 4) Writing to the Oscillation Adjustment Register requires filling the (0) bit.
* 5) These bit names apply to the Rx5C348A. For the Rx5C348B the bit names are SCRATCH2 and
Register, Control Register 1 and Control Register 2 excluding the XSTP bit.
SCRATCH3.
Register Name
Second Counter
Minute Counter
Hour Counter
Day-of-week Counter
Day-of-month
Counter
Month Counter and
Century Bit
Year Counter
Oscillation
Adjustment
Register *3)
Alarm_W
(Minute Register)
Alarm_W
(Hour Register)
Alarm_W
(Day-of-week
Register)
Alarm_D
(Minute Register)
Alarm_D
(Hour Register)
Control Register 1
*3)
Control Register 2
*3)
D7
Y80
WALE
-
*2)
-
-
-
-
/19⋅20
(0)
*4)
-
-
-
-
-
-
VDSL
WM40
D6
S40
M40
-
-
-
-
Y40
F6
-
WW6
DM40
-
-
DALE
VDET
D5
WM20
WH20
WP⋅/ A
- 11 -
S20
M20
H20
P⋅/A
-
D20
-
Y20
F5
WW5
DM20
DH20
DP⋅/A
-
/12⋅24
SCRA
TCH1
D4
WM10
/CLEN2
*5)
S10
M10
H10
-
D10
MO10
Y10
F4
WH10
WW4
DM10
DH10
-
XSTP /CLEN1
D a t a
D3
*5)
S8
M8
H8
-
D8
MO8
Y8
F3
WM8
WH8
WW3
DM8
DH8
-
TEST
D2
WM4
WW2
CTFG WAFG
S4
M4
H4
W4
D4
MO4
Y4
F2
WH4
DM4
DH4
-
CT2
12345
Rx5C348A/B
D1
WM2
WW1
S2
M2
H2
W2
D2
MO2
Y2
F1
WH2
DM2
DH2
-
CT1
D0
WM1
WW0
DAFG
S1
M1
H1
W1
D1
MO1
Y1
F0
WH1
DM1
DH1
-
CT0