SDI Technologies SDIO Card User Manual
Page 39
©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
32
5.4.5 Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – CRC Error
(Block Basis Transfer Mode)
Figure 23 – Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – 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
send Ack.
send Ack.
Set Retry
Interrupt
Int. clr
Int
53
53
52
53
53
52
53
53
52
52
52
52
52
D
D
D
D
D
D
D
D
Data
+CRC
Data
+CRC
Data
+CRC
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