Cypress FM4 Series - Host Control 1 Register

CHAPTER 15: SD Card Interface
854 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
2.10 Host Control 1 Register
This register is used to control the Host Controller.
D07
D06
D05
D04 D03
D02
D01
D00
Card Detect Signal Selection
Card Detect Test Level
Extended Data Transfer
Width (*2)
DMA Select
(*1)
High Speed
Enable
Data Transfer Width
LED Control
*1: Only when the ADMA2 Support bit in the Capabilities Register is 1 can 0b10 be written to the DMA
Select bits.
*2: If Slot Type bits in the Capabilities Register are 0b10, the Extended Data Transfer Width bit reflects
the value of the Bus Width Present bit in the Embedded Control Register.
For other details of this register, refer to SD Specifications Part A2.