Registers, 1 wtcr: rtc control register, Registers 4.1 wtcr: rtc control register – FUJITSU MB91460 SERIES FR60 User Manual
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Chapter 49 Real-Time Clock
4.Registers
4. Registers
4.1 WTCR: RTC Control Register
This register is used to control behavior of the Real-time Clock module.
• WTCR: Address 04A2
H
(Access: Byte, Half-word)
Meaning of Bit Attribute Symbols (Page No.10)
”.)
• bit15: Enable interrupt requests at 1-day intervals
When the hour counter overflows, this flag is set to “1”.
• bit14: 1-day interrupt request flag
• bit13: Enable interrupt requests at 1-hour intervals
When the minute counter overflows, this flag is set to “1”.
• bit12: 1-hour interrupt request flag
• bit11: Enable interrupt requests at 1-minute intervals
15
14
13
12
11
10
9
8
bit
INTE3
INT3
INTE2
INT2
INTE1
INT1
INTE0
INT0
0
0
0
0
0
0
0
0
Initial
value
0
0
0
0
0
0
0
0
When reset
R/W
R(R1),W
R/W
R(R1),W
R/W
R(R1),W
R/W
R(R1),W
Attribute
7
6
5
4
3
2
1
0
bit
Reserved
Reserved
Reserved
–
RUN
UPDT
–
ST
0
0
0
–
0
0
–
X
Initial
value
0
0
0
–
0
0
–
X
When reset
R/W0
R/W0
R/W0
RX/WX
R/WX
R(R0)/W
RX/WX
R/W
Attribute
INTE3
Operation
0
No interrupt requests
1
Generate interrupt requests at 1-day (24 hour) intervals.
INT3
Status
Read
Write
0
No interrupt requests
Clear the flag.
1
Generate interrupt requests at 1-day (24 hour)
intervals.
Writing does not affect the operation.
INTE2
Operation
0
No interrupt requests
1
Generate interrupt requests at 1-hour intervals.
INT2
Status
Read
Write
0
No interrupt requests
Clear the flag.
1
Generate interrupt requests at 1-hour intervals.
Writing does not affect the operation.
INTE1
Operation
0
No interrupt requests
1
Generate interrupt requests at 1-minute intervals.