R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1307

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

(2)
The transmit sources and receive sources are signals indicating the SIOF state; after being set, if
the state changes, they are automatically cleared by the SIOF.
When the DMA transfer is used, a DMA transfer request of the FIFO is disabled for one cycle at
the end of that DMA transfer.
(3)
On occurrence of each of the errors indicated as a status in SISTR, the SIOF performs the
following operations.
• Transmit FIFO underflow (TFUDF)
• Transmit FIFO overflow (TFOVF)
• Receive FIFO overflow (RFOVF)
• Receive FIFO underflow (RFUDF)
• FS error (FSERR)
• Assign error (SAERR)
The immediately preceding transmit data is again transmitted.
The contents of the transmit FIFO are protected, and the write operation causing the overflow
is ignored.
Data causing the overflow is discarded and lost.
An undefined value is output on the bus.
The internal counter is reset according to the signal in which an error occurs.
 If the same slot is assigned to both serial data and control data, the slot is assigned to serial
 If the same slot is assigned to two control data items, data cannot be transferred correctly.
Regarding Interrupt Source
Processing when Errors Occur
data.
Rev. 2.00 May 22, 2009 Page 1237 of 1982
Section 29 Serial I/O with FIFO (SIOF)
REJ09B0256-0200