DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 742

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

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

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