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Programmer’s Reference
Copyright © ARM Limited 2000. All rights reserved.
4-33
4.6.4
MMC transaction timing
The SPI bus timing used for transfers to and from MMC cards is similar to that used for
the keyboard controller (see Keyboard controller host interface timing on page 4-23),
although the way that data is assembled into valid messages is entirely different.
For more detailed timing requirements, refer to the documentation supplied by your
card vendor.
CMD30
SEND_WRITE_PROT
Request card write protection status
CMD32
TAG_SECTOR_START
First sector in erase list
CMD33
TAG_SECTOR_END
Last sector in erase list
CMD34
UNTAG_SECTOR
Remove sector from erase list
CMD35
TAG_ERASE_GROUP_START
First group in erase list
CMD36
TAG_ERASE_GROUP_END
Last group in erase list
CMD37
UNTAG_ERASE_GROUP
Remove group from erase list
CMD38
ERASE
Erase all previously selected sectors
CMD39
FAST_IO
Access application-specific registers
CMD59
CRC_ON_OFF
Enable/disable CRC
Table 4-22 MMC command summary (continued)
SPI
Index
Name
Function
Summary of Contents for Prospector P1100
Page 1: ...ARM DUI 0122A Prospector P1100 User Guide ...
Page 4: ...iv Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...
Page 86: ...Hardware Description 3 54 Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...
Page 140: ...Connector reference A 18 Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...