R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 759

• 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: -

The SH7780 includes an on-chip realtime clock (RTC) and a 32.768 kHz crystal oscillator for use
by the RTC.
20.1
The RTC has the following features.
• Clock and calendar functions (BCD display)
• 1 to 64 Hz timer (binary display)
• Start/stop function
• 30-second adjustment function
• Alarm interrupts
• Periodic interrupts
• Carry interrupt
• Automatic leap year adjustment
Counts seconds, minutes, hours, day-of-week, days, months, and years.
The 64 Hz counter register indicates a state of 64 Hz to 1 Hz within the RTC frequency divider
Comparison with second, minute, hour, day-of-week, day, month, or year can be selected as
the alarm interrupt condition
An interrupt period of 1/256 second, 1/64 second, 1/16 second, 1/4 second, 1/2 second, 1
second, or 2 seconds can be selected
Carry interrupt function indicating a second counter carry, or a 64 Hz counter carry when the
64 Hz counter is read
Features
Section 20 Realtime Clock (RTC)
Rev.1.00 Dec. 13, 2005 Page 707 of 1286
Section 20 Realtime Clock (RTC)
REJ09B0158-0100