K60P100M100SF2RM Datasheet, PDF (1617/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Field
31–28
Reserved
27–24
Reserved
23–16
INTSTVAL
15–2
Reserved
1
EXBLKNU
0
EXTDMAEN
Chapter 52 Secured digital host controller (SDHC)
SDHC_VENDOR field descriptions
Description
This read-only field is reserved and always has the value zero.
This read-only field is reserved and always has the value zero.
Internal State Value
Internal state value, reflecting the corresponding state value selected by Debug Select field. This field is
read-only and write to this field does not have effect.
This read-only field is reserved and always has the value zero.
Exact block number block read enable for SDIO CMD53
This bit must be set before S/W issues CMD53 multi-block read with exact block number. This bit must
not be set if the CMD53 multi-block read is not exact block number.
0 none exact block read.
1 Exact block read for SDIO CMD53.
External DMA Request Enable
Enable the request to external DMA. When the internal DMA (either simple DMA or advanced DMA) is not
in use, and this bit is set, SDHC will send out DMA request when the internal buffer is ready. This bit is
particularly useful when transferring data by CPU polling mode, and it is not allowed to send out the
external DMA request. By default, this bit is set.
0 In any scenario, SDHC does not send out external DMA request.
1 When internal DMA is not active, the external DMA request will be sent out.
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
1617