R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 881

• 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: -

22.4.2
SIOF_SYNC: The SIOF_SYNC is a frame synchronous signal. Depending on the transfer mode,
it has the following two functions.
• Synchronous pulse: 1-bit-width pulse indicating the start of the frame
• L/R: 1/2-frame-width pulse indicating the left-channel stereo data (L) in high level and the
Figure 22.3 shows the SIOF_SYNC synchronization timing.
right-channel stereo data (R) in low level
SIOF_RXD
SIOF_RXD
SIOF_SCK
SIOF_SYNC
SIOF_TXD
SIOF_SCK
SIOF_SYNC
SIOF_TXD
(a) Synchronous pulse
(b) L/R
Serial Timing
1-bit delay
No delay
Figure 22.3 Serial Data Synchronization Timing
Start bit of left channel data
(1/2 frame length)
Start bit data
1 frame
1 frame
Start bit of right channel data
(1/2 frame length)
Rev.1.00 Dec. 13, 2005 Page 829 of 1286
Section 22 Serial I/O with FIFO (SIOF)
REJ09B0158-0100