SDI Technologies SDIO Card - 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