R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1390

• 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 31 Multimedia Card Interface (MMCIF)
31.3.16 Data Register (DR)
DR is a register to read/write the FIFO data.
Word- or byte-access is possible.
31.3.17 FIFO Pointer Clear Register (FIFOCLR)
The FIFO write/read pointer is cleared by writing an arbitrary value to FIFOCLR.
Rev. 2.00 May 22, 2009 Page 1320 of 1982
REJ09B0256-0200
Bit
15 to 0
(7 to 0)
Bit
7 to 0
Initial value:
R/W:
Bit:
Bit Name
DR
Bit Name
FIFOCLR
R/W
15
—
R/W
14
—
Initial value:
R/W
13
—
Initial
Value
Undefined
Initial
Value
Undefined
R/W:
R/W
Bit:
12
—
R/W
—
W
7
11
—
R/W
R/W
R/W
W
R/W
—
W
6
10
—
Description
Register to read/write FIFO data.
Word- or byte-access is possible.
However, address 2n + 1 cannot be accessed in bytes.
Description
The FIFO pointer is cleared by writing an arbitrary value
to this register.
R/W
—
W
—
5
9
R/W
—
—
W
8
4
FIFOCLR
DR
R/W
—
—
7
W
3
R/W
—
6
—
W
2
R/W
—
5
—
W
1
R/W
—
4
—
W
0
R/W
—
3
R/W
—
2
R/W
—
1
R/W
—
0