R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 768

• 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: -

Section 20 Realtime Clock (RTC)
20.3.7
RMONCNT is an 8-bit readable/writable register used as a counter for setting and counting the
BCD-coded month value in the RTC. It counts on the carry generated once per month by the day
counter.
The setting range is decimal 01 to 12. The RTC will not operate normally if any other value is set.
Write processing should be performed after stopping the count with the START bit in RCR2, or
by using the carry flag.
RMONCNT is not initialized by a power-on or manual reset.
Bits 7 to 5 are always read as 0. A write to these bits is invalid, but the write value should always
be 0.
20.3.8
RYRCNT is a 16-bit readable/writable register used as a counter for setting and counting the
BCD-coded year value in the RTC. It counts on the carry generated once per year by the month
counter.
The setting range is decimal 0000 to 9999. The RTC will not operate normally if any other value
is set. Write processing should be performed after stopping the count with the START bit in
RCR2, or by using the carry flag.
RYRCNT is not initialized by a power-on or manual reset.
Rev.1.00 Dec. 13, 2005 Page 716 of 1286
REJ09B0158-0100
Initial value:
R/W:
BIt:
Month Counter (RMONCNT)
Year Counter (RYRCNT)
R/W
15
—
1000-year units
R/W
14
—
Initial value:
R/W
13
—
R/W:
R/W
BIt:
12
—
R/W
11
—
—
R
7
0
100-year units
R/W
10
—
—
R
6
0
R/W
—
—
R
5
0
9
10-month
R/W
R/W
unit
—
—
8
4
R/W
R/W
—
—
7
3
10-year units
1-month units
R/W
R/W
—
—
6
2
R/W
R/W
—
—
5
1
R/W
R/W
—
—
4
0
R/W
—
3
1-year units
R/W
—
2
R/W
—
1
R/W
—
0