R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 771

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Bits 6 to 3 are always read as 0. A write to these bits is invalid, but the write value should always
be 0.
20.3.13 Day Alarm Register (RDAYAR)
RDAYAR is an 8-bit readable/writable register used as an alarm register for the RTC's BCD-
coded day value counter, RDAYCNT. When the ENB bit is set to 1, the RDAYAR value is
compared with the RDAYCNT value. Comparison between the counter and the alarm register is
performed for those registers among RSECAR, RMINAR, RHRAR, RWKAR, RDAYAR, and
RMONAR in which the ENB bit is set to 1, and the RCR1 alarm flag is set when the respective
values all match.
The setting range is decimal 01 to 31 + ENB bit. The RTC will not operate normally if any other
value is set. The setting range for RDAYAR depends on the month and whether the year is a leap
year, so care is required when making the setting.
The ENB bit in RDAYAR is initialized by a power-on reset. The other fields in RDAYAR are not
initialized by a power-on or manual reset.
Bit 6 is always read as 0. A write to this bit is invalid, but the write value should always be 0.
Day-of-week code
Day of week
Initial value:
Initial value:
0
Sun
R/W:
R/W:
BIt:
BIt:
ENB
ENB
R/W
R/W
7
0
7
0
1
Mon
—
—
R
R
6
0
6
0
10-day units
R/W
—
—
R
2
Tue
5
0
5
R/W
—
—
R
4
0
4
R/W
—
3
—
Wed
R
3
0
3
Rev.1.00 Dec. 13, 2005 Page 719 of 1286
R/W
R/W
Day-of-week code
1-day units
—
—
2
2
R/W
R/W
4
Thu
—
—
1
1
Section 20 Realtime Clock (RTC)
R/W
R/W
—
—
0
0
5
Fri
REJ09B0158-0100
6
Sat