Memory card and initialization setting method thereof to...

Details Memory card and initialization setting method thereof to... Memory card and initialization setting method thereof to...

2007-11-13

2007-11-13

Sparks, Donald (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

C710S008000, C710S049000, C714S025000, C717S168000, C717S171000

Reexamination Certificate

active

10549614

ABSTRACT:
Whether an initial command outputted from a host is ‘CMD1’or ‘CMD55+CMD41’is detected with an initial command detection portion8, and the result of detection is set in an SD/MMC register13. Reset process for hardware and that for firmware are carried out based on the result of detection set in the SD/MMC register13. Thereafter, a microcomputer7sets data indicating in which mode, MultiMedia Card mode or SD mode, the firmware reset process was carried out, in a F/W process SD/MMC register14. A H/W-F/W mode comparison circuit15compares data in the SD/MMC register13with data in the F/W process SD/MMC register14. If these data agree with each other, busy state is released, and command wait state is established. If they disagree with each other, a disagreement occurrence detection signal is outputted to the microcomputer7, and power-on reset processing is performed again.

REFERENCES:
patent: 6708231 (2004-03-01), Kitagawa
patent: 2001/0000405 (2001-04-01), Gray et al.
patent: 2004/0064686 (2004-04-01), Miller et al.
patent: 6-187133 (1994-07-01), None
patent: 2003-30613 (2003-01-01), None

Affiliated with

Also associated with

Rating

Memory card and initialization setting method thereof to... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory card and initialization setting method thereof to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory card and initialization setting method thereof to... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3856812