DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 742
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Section 14 Realtime Clock (RTC)
14.3.16 RTC Control Register 1 (RCR1)
RCR1 is a register that affects carry flags and alarm flags. It also selects whether to generate
interrupts for each flag.
The CF flag remains undefined until the divider circuit is reset (the RESET and ADJ bits in RCR2
are set to 1). When using the CF flag, make sure to reset the divider circuit beforehand.
Rev. 3.00 Sep. 28, 2009 Page 710 of 1650
REJ09B0313-0300
Bit
7
6, 5
Bit Name
CF
—
Initial value:
Initial
Value
Undefined R/W
All 0
R/W:
BIt:
R/W
CF
7
-
R/W
R
R
6
0
-
Description
Carry Flag
Status flag that indicates that a carry has occurred. CF
is set to 1 when a count-up to 64-Hz occurs at the
second counter carry or 64-Hz counter read. A count
register value read at this time cannot be guaranteed;
another read is required.
0: No carry of 64-Hz counter by second counter or 64-
[Clearing condition]
When 0 is written to CF
1: Carry of 64-Hz counter by second counter or 64 Hz
[Setting condition]
When the second counter or 64-Hz counter is read
during a carry occurrence by the 64-Hz counter, or 1 is
written to CF.
Reserved
These bits are always read as 0. The write value should
always be 0.
Hz counter
counter
R
5
0
-
R/W
CIE
4
0
R/W
AIE
3
0
R
2
0
-
R
1
0
-
R/W
AF
0
0
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