R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 859

• 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: -

Bit
9
8
7 to 2
Bit Name
TXE
RXE
—
Initial
Value
0
0
All 0
R/W
R/W
R/W
R
Description
Transmit Enable
0: Disables data transmission from the SIOF_TXD pin
1: Enables data transmission from the SIOF_TXD pin
•
•
This bit is initialized upon a transmit reset.
Receive Enable
0: Disables data reception from SIOF_RXD
1: Enables data reception from SIOF_RXD
•
•
This bit is initialized upon receive reset.
Reserved
These bits are always read as 0. The write value should
always be 0.
This bit setting becomes valid at the start of the next
frame (at the rising edge of the SIOF_SYNC signal).
When the 1 setting for this bit becomes valid, the
SIOF issues a transmit transfer request according to
the setting of the TFWM bit in SIFCTR. When
transmit data is stored in the transmit FIFO,
transmission of data from the SIOF_TXD pin begins.
This bit setting becomes valid at the start of the next
frame (at the rising edge of the SIOF_SYNC signal).
When the 1 setting for this bit becomes valid, the
SIOF begins the reception of data from the
SIOF_RXD pin. When receive data is stored in the
receive FIFO, the SIOF issues a reception transfer
request according to the setting of the RFWM bit in
SIFCTR.
Rev.1.00 Dec. 13, 2005 Page 807 of 1286
Section 22 Serial I/O with FIFO (SIOF)
REJ09B0158-0100