SDI Technologies SDIO Card User Manual
Page 40
©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
33
5.4.6 Read Flow for the Card with Unnecessary Read Acknowledge (RTC=1) – CRC
Error (Block Basis Transfer Mode)
Figure 24 – Read Flow for the Card with Unnecessary Read Acknowledge (RTC=1) – CRC
Error (Block Basis Transfer Mode)
CMD
DAT
Packet Data n
Packet Data (n+1)
Packet Data (
n+1
)
D
CMD
DAT2, 3
DAT1
DAT0
Data+CRC
Data+CRC
Data+CRC
Data
Data
Data
Interface data1
Header
Interface data2
Data
+CRC
Data
+CRC
Data
+CRC
Block mode
Byte mode
Set Retry
I/O abort
Header
Retry
CRC Error Occur!
PCRRT: Packet Read Retry
R: Response
CRC Error
Int
Int
Int. clr
Int. clr
Set Retry
Interrupt
Int. clr
Int
Don't
send Ack
.
Don't
send Ack
.
53
53
52
53
53
52
53
53
52
52
52
D
D
D
D
D
D
D
D
CMD53 (R)
Receive Buff.
R
CMD52 (W)
I/O abort
R
CMD52 (W)
PCRRT -> 1
R
CMD53 (R)
Receive Buff.
R
CMD52 (W)
Int. Clear
R
Data
+CRC
Data
+CRC
Data
+CRC