r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1234

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

24. Multimedia Card Interface (MMCIF)
(1)
(2)
Rev.1.00 Jan. 10, 2008 Page 1204 of 1658
REJ09B0261-0100
Bit
7 to 0
Bit
7 to 5
4 to 0
RSPR0 to RSPR16
RSPRD
Bit Name
RSPR
Bit Name
—
RSPRD
Initial value:
Initial value:
Initial
Value
H'00
Initial
Value
All 0
00000
R/W:
R/W:
Bit:
Bit:
R/W
⎯
R
7
0
7
0
R/W
R/W
R/W
R
R/W
R/W
⎯
6
0
6
0
R
Description
These bits are cleared to H'00 by writing an arbitrary
value.
RSPR0 to RSPR16 comprise a continuous 17-byte shift
register.
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
CRC status
[Clearing condition]
When writing any value to these bits, cleared to
B'00000.
CRC status is stored. CRC status is command
response from the card when data is written into the
MMC card.
R/W
⎯
R
5
0
5
0
R/W
R/W
4
0
4
0
RSPR
R/W
R/W
0
0
3
3
RSPRD
R/W
R/W
2
0
2
0
R/W
R/W
1
0
1
0
R/W
R/W
0
0
0
0