RM0082
RS_SDIO controller
Doc ID 018672 Rev 1
703/844
32.7.8
Buf data port register
TheBufDataPort bit assignments are given in
.
32.7.9 PRSTATE
register
The PRSTATE bit assignments are given in
.
Table 626.
Response bit definition for each response type
Kind of response
Meaning of response
Response field
Response register
R1, R1b (normal response)
Card Status
R[39:8]
RESP[31:0]
R1b (Auto CMD12 response)
Card Status for Auto
CMD12
R[39:8]
RESP[127:96]
R2 (CID, CSD Register)
CID or CSD reg. incl.
R[127:8]
RESP[119:0]
R3 (OCR Register)
OCR Register for memory
R[39:8]
RESP[31:0]
R4 (OCR Register)
OCR Register for I/O.
R[39:8]
RESP[31:0]
R5, R5b
SDIO Response
R[39:8]
RESP[31:0]
R6 (Published RCA
response)
New published RCA[31:16]. R[39:8]
RESP[31:0]
Table 627.
BufDataPort register bit assignments
Bit
Name
Reset
value
Type
Description
[31:00]
BUFDATA
-
RW
The Host Controller Buffer can be accessed
through this 32 bit Data Port Register.
Table 628.
PRSTATE register bit assignments
Bit
Name
Reset
value
Type
Description
[31:29]
-
-
Rsvd
Reserved
[28:25]
DAT[7:4]LSL
4’hF
RO
This status is used to check DAT line level to recover
from errors, and for debugging.
D28 - DAT[7]
D27 - DAT[6]
D26 - DAT[5]
D25 - DAT[4]
[24]
CMDLSL
1’h1
RO
This status is used to check CMD line level to recover
from errors, and for debugging.