R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 808

• 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: -

Section 21 Serial Communication Interface with FIFO (SCIF)
Rev.1.00 Dec. 13, 2005 Page 756 of 1286
REJ09B0158-0100
Bit
1
Bit Name
RDF
Initial
Value
0
R/W
R/W* Receive FIFO Data Full
Description
Indicates that the received data has been transferred
from SCRSR to SCFRDR, and the number of receive
data bytes in SCFRDR is equal to or greater than the
receive trigger number set by bits RTRG1 and RTRG0
in SCFCR.
0: The number of receive data bytes in SCFRDR is less
[Clearing conditions]
•
•
•
1: The number of receive data bytes in SCFRDR is
[Setting condition]
•
Note: SCFRDR is a 64-byte FIFO register. When RDF
than the receive trigger set number
equal to or greater than the receive trigger set
number
Power-on reset or manual reset
When SCFRDR is read until the number of receive
data bytes in SCFRDR falls below the receive
trigger set number after reading RDF = 1, and 0 is
written to RDF
When SCFRDR is read by the DMAC until the
number of receive data bytes in SCFRDR falls
below the receive trigger set number
When SCFRDR contains at least the receive trigger
set number of receive data bytes*
= 1, at least the receive trigger set number of
data bytes can be read. If all the data in
SCFRDR is read and another read is performed,
the data value will be undefined. The number of
receive data bytes in SCFRDR is indicated by
SCRFDR.