RS5C372B-E2(1997) View Datasheet(PDF) - RICOH Co.,Ltd.
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RS5C372B-E2 Datasheet PDF : 39 Pages
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RS5C372B
2.7.2. Alarm_A,Alarm_B hour register (Alarm_A:Internal address at 9h, Alarm_B: Internal address at Ch)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
AH20(*1) AH10 AH8
AH4
AH2
AH1 (for write operation)
AP⋅/A
0
0
AH20 AH10 AH8 AH4 AH2 AH1 (for read operation)
AP⋅/A
0
0
unde- unde- unde- unde- unde- unde- Default (*2)
fined fined fined fined fined fined
*1) AXXX in this table is the name for Alarm_A function, for Alarm_B function it is BXXX.
*2) The default means read values when XSTP=“1” by after initial power-on or supply voltage drop,etc.
2.7.3. Alarm_A, Alarm_B day of the week register
(Alarm_A: internal address at Ah, Alarm_B: internal address at Dh)
D7
D6
D5
D4
D3
D2
D1
D0
- AW6(*1) AW5 AW4 AW3 AW2 AW1 AW0 (for write operation)
0
AW6
AW5 AW4 AW3 AW2 AW1 AW0 (for read operation)
0
unde- unde- unde- unde- unde- unde- unde- Default(*2)
fined fined fined fined fined fined fined
*1) AXXX in this table is the name for Alarm_A function, for Alarm_B function it is BXXX.
*2) The default means read values when XSTP=“1” by after initial power-on or supply voltage drop,etc.
• Alarm_A, Alarm_B hour register D5 is set to 0 for AM and 1 for PM in the 12-hour display system
at AP/A. The register D5 indicates 10 digit of hour digit in 24-hour display system at AH20.
• To activate alarm operation, any imaginary alarm time setting should not be left to avoid unmatching.
• In hour digit display midnight is set to 12, noon is set to 32 in 12-hour display system.
(See section 2.2.1.)
• AW0 to AW6 correspond to the day-of-the-week counter (W4, W2, W1) being set at (0, 0, 0) to (1, 1, 0).
• No alarm pulses are output when all of AW0 to AW6 are set to "0".
Example of Alarm Time settings
Alarm Time Settings
Day-of-the-week
12-hour system 24-hour system
Sun Mon. Tues. Wed. Th. Fri. Sat. 10- 1- 10- 1- 10- 1- 10- 1-
hour hour min. min. hour hour min. min.
AW0 AW1 AW2 AW3 AW4 AW5 AW6
00:00 AM every day
11
1
1 1 1 1 12000000
01:30 AM every day
11
1
1 1 1 1 01300130
11:59 AM every day
11
1
1 1 1 1 11591159
00:00 PM on Monday 0 1
1
1 1 1 0 32001200
through Friday
01:30 PM on Sunday 1 0
0
0 0 0 0 21301330
11:59 PM on Mon.,
01
0
1 0 1 0 31592359
Wed., and Fri.
Designation of days of the week and AW0 through AW6 in the above table is an example.
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