Texas Instruments AM335 Series Technical Reference Manual

cmd
dat0
Command
Response
Host to
card
Card to
host
Host to
card
Block write operation
dat[7:1]
Card to
host
Data block
+ CRC
Busy
CRC
Status
XX
Data block
+ CRC
XXXX
Command
Response
Card to
host
Host to
card
t1 t2
cmd
dat0
Command
Response
Host to
card
Card to
host
dat[7:1]
Command
Response
Card to
host
Host to
card
t1 t2
Busy
XXXX
www.ti.com Functional Description
18.3.9.1 Busy Timeout for R1b, R5b Response Type
Figure 18-21 shows DCRD event condition asserted when there is a busy timeout for R1b or R5b
responses.
Figure 18-21. Busy Timeout for R1b, R5b Responses
t1 - Data timeout counter is loaded and starts after R1b, R5b response type.
t2 - Data timeout counter stops and if it is 0, SD_STAT[21] DCRC is generated.
18.3.9.2 Busy Timeout After Write CRC Status
Figure 18-22 shows DCRC event condition asserted when there is busy timeout after write CRC status.
Figure 18-22. Busy Timeout After Write CRC Status
t1 - Data timeout counter is loaded and starts after CRC status.
t2 - Data timeout counter stops and if it is 0, SD_STAT[21] DCRC is generated.
3371
SPRUH73H–October 2011–Revised April 2013 Multimedia Card (MMC)
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Texas Instruments AM335 Series Specifications

General

Brand	Texas Instruments
Model	AM335 Series
Category	Computer Hardware
Language	English