rs5c62 RICOH Co.,Ltd., rs5c62 Datasheet - Page 19

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

3. Functions of Counters
3.1 Time Counter (BANK0 at “0h to 5h”)
*
*
*
*
*
*
*
*
3) Relationship between TMFG Bit and TMOUT pin output
4) The timer is stopped (the TMOUT pin output is turned off) upon driving low the CE pin input, but restarted upon driving high the CE pin input.
5) Timer output is disabled (the TMOUT pin output is turned off) upon resetting the TM
6) Timer output is turned off (the TMOUT pin output is turned off) upon setting the TMR bit to “1” in the control register 1 during timer output (while the
D3
M
1) The bits marked with “
2) Upon setting the WTEN bit to “0” in the control register 1, a carry to the 1-second time digit from the second counter is disabled.
3) The time digits are indicated in BCD notation as shown below:
4) A carry from any non-existent time digit must be avoided because it may cause malfunction in the time counter.
H
S
*
*
*
8
8
8
XSTP bit to “1”).
TMOUT pin is held low).
Second digit: Ranges from 00 to 59 and carried to the minute digit in transition from 59 to 00.
Minute digit: Ranges from 00 to 59 and carried to the hour digit in transition from 59 to 00.
Hour digit: Ranges as shown in “2. 7 12/24-hour Time Scale Selection Register” and carried to the day or day-of-the-week digit in transition from 11
p.m. to 12 a.m. or from 23 to 00.
M
D2
S
M
H
S
*
40
4
40
4
4
TMOUT
TMFG
Setting the TMR bit to “1”
P/A or H
*
M
D1
S
M
H
” are always read as “0” and not intended for write operation.
S
20
2
20
2
2
20
M
H
D0
S
M
H
S
10
10
1
10
1
1
MAX.T
(For read and write operations) 1-second time digit (at“0h”)
(For read and write operations) 10-second time digit (at“1h”)
(For read and write operations) 1-minute time digit (at “2h”)
(For read and write operations) 10-minute time digit (at“3h”)
(For read and write operations) 1-hour time digit (at“4h”)
(For read and write operations) 10-hour time digit (at“5h”)
Setting the TMR bit to “1”
1
T
2
3
bit to “0” when the stop of oscillation is detected (setting the
0.244ms
T
3
RP/RF/RS5C62
15