MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 492

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Secure digital input/output interface (SDIO)
20.5.5
20.5.6
492/995
Table 145. R3 response
R4 (Fast I/O)
Code length: 48 bits. The argument field contains the RCA of the addressed card, the
register address to be read out or written to, and its content.
Table 146. R4 response
R4b
For SD I/O only: an SDIO card receiving the CMD5 will respond with a unique SDIO
response R4. The format is:
Table 147. R4b response
47
46
[45:40]
[39:8]
[7:1]
0
47
46
[45:40]
[39:8] Argument field
[7:1]
0
47
46
[45:40]
[39:8] Argument field
Bit position
Bit position
Bit position
[31:16]
[15:8]
[7:0]
39
[38:36]
35
[34:32]
[31:8]
1
1
6
32
7
1
Width (bits
Doc ID 13902 Rev 9
1
1
6
16
8
8
7
1
1
1
6
16
3
1
3
24
Width (bits
Width (bits
0
0
‘111111’
X
‘1111111’
1
0
0
‘111111’
X
X
X
1
0
0
x
X
X
X
‘1111111’
X
X
Value
Value
Value
Start bit
Transmission bit
Reserved
OCR register
Reserved
End bit
Start bit
Transmission bit
Reserved
RCA
register address
read register contents
CRC7
End bit
Start bit
Transmission bit
Reserved
Card is ready
Number of I/O functions
Present memory
Stuff bits
I/O ORC
Description
Description
Description
RM0008