SDI Technologies SDIO Card - Manual (Page 31)

©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
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5.3.3 Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – No Error
(Byte Basis Transfer Mode)
Figure 15 – Read Flow for the Card with Necessary Read Acknowledge (RTC=0) – No Error
(Byte Basis Transfer Mode)
CMD
DAT
Packet Data n
Packet Data (n+1) Packet Data (n+2)
CMD
DAT2, 3
R R R
DAT1
Interrupt
DAT0 Data+CRC
Data+CRC
Data+CRC
R
Data+CRC
Data+CRC
Data+CRC
Interface data1 Header Interface data2
PCRRT: Packet Read Retry
R: Response
Data
+CRC
Data
+CRC
Data
+CRC
R
Int Int Int
Int. clr Int. clr Int. clr send Ack. send Ack. send Ack.
Send Acknowledge
52 52 53 53 53 52 52 53 53 53 52 52
CMD52 (W)
Int. Clear
CMD53 (R)
Receive Buff.
CMD53 (R)
Receive Buff.
CMD53 (R)
Receive Buff.
CMD52 (W)
PCRRT -> 0
D D D D D D D D D
53 53 53