r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1384

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

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. 1.00 Oct. 01, 2007 Page 1318 of 1956
REJ09B0256-0100
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