Altera cyclone V Technical Reference page 1053

cv_5v4
2016.10.28
Bit
8
check_response_crc
7
response_length
6
response_expect
5:0
cmd_index
resp0
Preserves previous command.
Module Instance
sdmmc
Offset:
0x30
Access:
RO
SD/MMC Controller
Send Feedback
Name
Some of command responses do not return valid CRC
bits. Software should disable CRC checks for those
commands in order to disable CRC checking by
controller.
Value
0x0
0x1
Provides long and short response
Value
0x0
0x1
Response expected from card.
Value
0x0
0x1
Tracks the command index number. Values from 0-
31.
0xFF704000
Description
Description
Do not check response CRC
Check Response CRC
Description
Short response expected from card
Long response expected from card
Description
No response expected from card
Response expected from card
Base Address
0xFF704030
14-107
resp0
Access Reset
RW 0x0
RW 0x0
RW 0x0
RW 0x0
Register Address
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