R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 889

• 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 number of stages of the FIFO is always sixteen even if the data area or empty area exceeds the
FIFO size (the number of FIFOs). Accordingly, an overflow error or underflow error occurs if data
area or empty area exceeds sixteen FIFO stages. The FIFO transmit or receive request is canceled
when the above condition is not satisfied even if the FIFO is not empty or full.
Number of FIFOs: The number of FIFO stages used in transmission and reception is indicated by
the following register.
• Transmit FIFO: The number of empty FIFO stages is indicated by the bits TFUA[4:0] in
• Receive FIFO: The number of valid data stages is indicated by the bits RFUA[4:0] in SIFCTR.
SIFCTR.
The above indicate possible data numbers that can be transferred by the CPU or DMAC.
Rev.1.00 Dec. 13, 2005 Page 837 of 1286
Section 22 Serial I/O with FIFO (SIOF)
REJ09B0158-0100