SDI Technologies SDIO Card - 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