cmd
dat0
Command
Response
Command
Response
Block write operation
Host to
card
Card to
host
Host to
card
dat[3:1]
Card to
host
Data block
+ CRC
Busy
CRC
Status
XX
Host to
card
Card to
host
mmchs-057
Data block
+ CRC
XXXX
t1
t2
cmd
dat0
Command
Response
Block write operation
Host to
card
Card to
host
Host to
card
dat[3:1]*
(see note 1)
Card to
host
Data block
+ CRC
Busy
CRC
Status
XX
mmchs-058
Data block
+ CRC
XXXX
t1 t2
Public Version
www.ti.com
MMC/SD/SDIO Functional Description
Figure 24-24. 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,
[21] DCRC is generated.
24.4.5.3 Write CRC Status Timeout
shows DCRC event condition asserted when there is write CRC status timeout.
Figure 24-25. Write CRC Status Timeout
t1 - Data timeout counter is loaded and starts after Data block + CRC
t2 - Data timeout counter stops and if it is 0,
[21] DCRC is generated.
24.4.5.4 Read Data Timeout
shows DCRC event condition asserted when there is read data timeout.
3391
SWPU177N – December 2009 – Revised November 2010
MMC/SD/SDIO Card Interface
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...