Cypress FM4 Series - Software Reset Register

CHAPTER 15: SD Card Interface
860 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
2.16 Software Reset Register
A reset pulse is generated when 1 is written to one of the three bits, D02 to D00, in this register.
D07 D03
D02
D01
D00
Rsvd
Software
Reset For
DAT Line (*)
Software Reset For
CMD Line (*)
Software Reset For All
(*)
*: This bit can be set to 1 only when the Internal Clock Enable bit in the Clock Control Register is 1.
For other details of this register, refer to SD Specifications Part A2.