R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 846

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 22 Realtime Clock (RTC)
22.4.16 RTC Control Register 2 (RCR2)
RCR2 is an 8-bit readable/writable register used for periodic interrupt control, 30-second
adjustment, and frequency divider RESET and RTC count control.
RCR2 is basically initialized to H'09 by a power-on reset, except that the value of the PEF bit is
undefined. In a manual reset, bits other than RTCEN and START are initialized, while the value
of the PEF bit is undefined. In standby mode RCR2 is not initialized, and retains its current value.
Rev. 2.00 May 22, 2009 Page 776 of 1982
REJ09B0256-0200
Bit
0
Bit Name
AF
Initial value:
Initial
Value
Undefined R/W
R/W:
Bit:
R/W
PEF
—
7
R/W
R/W
6
0
Description
Alarm Flag
Set to 1 when the alarm time set in those registers
among RSECAR, RMINAR, RHRAR, RWKAR,
RDAYAR, and RMONAR in which the ENB bit is set to
1 matches the respective counter values.
0: Alarm registers and counter values do not match
[Clearing condition]
When 0 is written to AF
1: Alarm registers and counter values match*
[Setting condition]
When alarm registers in which the ENB bit is set to 1
and counter values match*
Note: * Writing 1 does not change the value.
PES[2:0]
R/W
5
0
(Initial value)
R/W
4
0
RTCEN
R/W
3
1
R/W
ADJ
2
0
RESET
R/W
1
0
START
R/W
0
1