SDI Technologies SDIO Card - Manual (Page 37)

©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
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5.4.3 Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – No Error
(Block Basis Transfer Mode)
Figure 21 – Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – No
Error (Block Basis Transfer Mode)
CMD
DAT
Packet Data n Packet Data (n+1) Packet Data (n+2)
CMD
DAT2, 3
DAT1
Interrupt occur
DAT0 Data+CRC
Data+CRC
Data+CRC
Data+CRC
Data+CRC
Data+CRC
Interface data1 Header Interface data2
Data
+CRC
Data
+CRC
Byte mode Block mode
PCRRT: Packet Read Retry
R: Response
Int Int Int
Int. clr Int. clr Int. clr send Ack. send Ack. send Ack.
Send Acknowledge
53 53 52 52 53 53 52 52 53 53 52 52
D D D D D D D D D
Data
+CRC
CMD52 (W)
Int. Clear
CMD53 (R)
Receive Buff. R R
CMD53 (R)
Receive Buff. R
CMD52 (W)
PCRRT -> 0 R