R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 784

• 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)
20.6.3
If it occurs complex interrupt source of alarm interrupts (ATI), periodic interrupts (PFI), and carry
interrupts (CUI) at the same time, the RTC generates interrupt request as shown in figure 20.6.
Rev.1.00 Dec. 13, 2005 Page 732 of 1286
REJ09B0158-0100
RCR2.PEF
periodical interrupt flag
(interrupt request signal)
Pck
(50MHz)
EXTAL2
(32.768kHz)
TCLK
(16.384kHz)
RSECCNT[7:0]
second counter register
R64CNT[7:0]
64Hz counter register
RCR1.CF
carry flag
(interrupt request signal)
RCR1.AF
alarm flag
(interrupt request signal)
Figure 20.6 Interrupt Request Signal Generation Timing of Complex Sources
Interrupt source and request generating order
Pck 6 to 8 clock cycles
EXTAL2 4 clock cycles
H'7F
n
carry, periodical, and alarm interrupt
ready period
carry
Pck 2 clock cycles
H'00
Pck 4 to 6 clock cycles
n+1