Renesas SH7781 (1) RSPR0 to RSPR16 , (2) RSPRD

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:
76543210
00000000
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:
76543210
00000000
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.