R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1216

• 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: -

Section 28 Serial Communication Interface with FIFO/IrDA Interface (SCIF/IrDA)
28.3.10 FIFO Data Count Register (SCFDR)
SCFDR is a 16-bit register that indicates the number of transmit data bytes stored in SCFTDR.
SCFDR can always be read from the CPU.
Rev. 2.00 May 22, 2009 Page 1146 of 1982
REJ09B0256-0200
Initial value:
Bit
15 to 13
12 to 8
7 to 5
4 to 0
R/W:
Bit:
Bit Name
—
TDN[4:0]
—
RDN[4:0]
15
R
0
14
R
0
13
R
0
All 0
All 0
All 0
Initial
Value
All 0
12
R
0
11
R
0
R/W
R
R
R
R
TDN[4:0]
10
R
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
These bits show the number of untransmitted data
bytes in SCFTDR. A value of H'00 indicates that there
is no transmit data, and a value of H'10 indicates that
SCFTDR is full of transmit data (16-bytes).
Reserved
These bits are always read as 0. The write value should
always be 0.
These bits show the number of receive data bytes in
SCFRDR. A value of H'00 indicates that there is no
receive data, and a value of H'10 indicates that
SCFRDR is full of receive data (16-bytes).
R
9
0
R
8
0
R
7
0
R
6
0
R
5
0
R
4
0
R
3
0
RDN[4:0]
R
2
0
R
1
0
R
0
0