R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 742

• Manufacturer Part Number: R0K572030S000BE
• Description: KIT DEV FOR SH7203
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572030S000BE

• Contents: CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
• Silicon Manufacturer: Renesas
• Kit Contents: Board
• Silicon Family Name: SH7203
• Silicon Core Number: R5S72030W200FP
• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Mcu Supported Families: SH7203
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SH7203
• Lead Free Status / Rohs Status: 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