RX5C348A Datasheet, PDF (11/45 Pages) RICOH electronics devices division – 4-WIRE SERIAL INTERFACE

Rx5C348A/B
Address Mapping
Address
A3A2A1A0
00 0 0 0
10 0 0 1
20 0 1 0
30 0 1 1
40 1 0 0
50 1 0 1
60 1 1 0
70 1 1 1
81 0 0 0
91 0 0 1
A1 0 1 0
B1 0 1 1
C1 1 0 0
D1 1 0 1
E1 1 1 0
F1 1 1 1
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
-
*2)
-
-
-
-
/19⋅20
Y80
(0)
*4)
-
-
-
-
-
-
WALE
VDSL
D6
S40
M40
-
-
-
-
Y40
F6
WM40
-
WW6
DM40
-
-
DALE
VDET
D5
S20
M20
H20
P⋅/A
-
D20
-
Y20
F5
WM20
WH20
WP⋅/ A
WW5
DM20
DH20
DP⋅/A
-
/12⋅24
SCRA
TCH1
Data
D4
D3
S10 S8
D2 D1
S4 S2
M10 M8
H10 H8
M4 M2
H4 H2
-
-
D10 D8
W4 W2
D4 D2
MO10 MO8 MO4 MO2
Y10 Y8
F4
F3
Y4 Y2
F2 F1
WM10 WM8 WM4 WM2
WH10 WH8 WH4 WH2
WW4 WW3 WW2 WW1
DM10 DM8 DM4 DM2
DH10 DH8 DH4 DH2
-
/CLEN2
*5)
XSTP
-
TEST
/CLEN1
*5)
-
CT2
CTFG
-
CT1
WAFG
D0
S1
M1
H1
W1
D1
MO1
Y1
F0
WM1
WH1
WW0
DM1
DH1
-
CT0
DAFG
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
Register, Control Register 1 and Control Register 2 excluding the XSTP bit.
* 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
SCRATCH3.
Rev.2.01
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