1) rspr0 to rspr16, 2) rsprd – Renesas SH7781 User Manual
Page 1234

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1204 of 1658
REJ09B0261-0100
(1)
RSPR0 to RSPR16
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/W
RSPR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit Bit
Name
Initial
Value R/W Description
7 to 0
RSPR
H'00
R/W
These bits are cleared to H'00 by writing an arbitrary
value.
RSPR0 to RSPR16 comprise a continuous 17-byte shift
register.
(2)
RSPRD
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R
RSPRD
R
R
R/W
R/W
R/W
R/W
R/W
⎯
⎯
⎯
Bit Bit
Name
Initial
Value R/W Description
7 to 5
—
All 0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
4 to 0
RSPRD
00000
R/W
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.