User manual

7. Real-Time Clock
73
Register B
Register: B
Address: Offset+0Bh
Access: Read and Write
SET
PIE AIE
UIE 0
DM
24/12
DSE
7654
32
10
Daylight Savings
0 Disabled
1 Enabled
24-hour/12-hour Operation
0 12-hour mode
1 24-hour mode
Data Mode
0 BCD
1 Binary
Update-End Interrupt
0 Disabled
1 Enabled
Alarm Interrupt Enable
0 Disabled
1 Enabled
Periodic Interrupt Enable
0 Disabled
1 Enabled
Cycle Update
0 Real Time
1 Latch Time
Register B
Register C
Register: C
Address: Offset+0Ch
Access: Read
IRQF PF
AF
UF
0
76 54
3
2
1
0
00
0
Update Flag
0 No update
1 Update
Alarm Flag
0 No alarm
1 Alarm
Periodic Interrupt Flag
0 No interrupt
1 Interrupt
Interrupt Pending
0 No interrupt
1 Interrupt
Register C