R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1279

• 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: -

Bit
3
2
Bit Name
TFOVF
TFUDF
Initial
Value
0
0
R/W
R/W
R/W
Description
Transmit FIFO Overflow
0: No transmit FIFO overflow
1: Transmit FIFO overflow
A transmit FIFO overflow means that there has been an
attempt to write to SITDR when the transmit FIFO is
full.
When a transmit FIFO overflow occurs, the SIOF
indicates overflow, and writing is invalid.
•
•
•
Transmit FIFO Underflow
0: No transmit FIFO underflow
1: Transmit FIFO underflow
A transmit FIFO underflow means that loading for
transmission has occurred when the transmit FIFO is
empty.
When a transmit FIFO underflow occurs, the SIOF
repeatedly sends the previous transmit data.
•
•
•
This bit is valid when the TXE bit in SICTR is 1.
When 1 is written to this bit, the contents are
cleared. Writing 0 to this bit is invalid.
If the issue of interrupts by this bit is enabled, an
SIOF interrupt is issued.
This bit is valid when the TXE bit in SICTR is 1.
When 1 is written to this bit, the contents are
cleared. Writing 0 to this bit is invalid.
If the issue of interrupts by this bit is enabled, an
SIOF interrupt is issued.
Rev. 2.00 May 22, 2009 Page 1209 of 1982
Section 29 Serial I/O with FIFO (SIOF)
REJ09B0256-0200