SDI Technologies SDIO Card User Manual
Page 30
©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
23
5.3.2 Write Flow – CRC Error (Byte Basis Transfer Mode)
Figure 14 – Write Flow – CRC Error (Byte Basis Transfer Mode)
CMD
DAT2, 3
DAT1
DAT0
C
Busy
Header and Interface data1
Interface data2
Interface data2
CMD
DAT
Packet Data n
Packet Data (n+1)
Packet Data (n+2)
CRC Error
Retry
PCWRT: Packet Read Retry
R: Response, C: CRC token
Packet Data (n+1)
Retry
Retry
Retry
Retry
R
Set Retry
Busy
Set Retry
53
53
53
53
53
53
53
53
53
53
53
52
D
D
D
D
D
D
D
D
D
D
D
R
CMD53 (W)
Transmit Buff.
R
CMD53 (W)
Transmit Buff.
Data+CRC
Data+CRC
Data+CRC
R
CMD53 (W)
Transmit Buff.
WRITE into SDIO Card Type-A for Bluetooth
Register 0x00 is prohibited during this period
to avoid destroying data that is being retried.
Error
C
CMD52 (W)
PCWRT -> 1
Data+CRC
Data+CRC
CRC Error Occur!
Data+CRC
Data+CRC
C
Data+CRC
Data+CRC