Cypress FM4 Series - Page 863

CHAPTER 15: SD Card Interface
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 863
Bit
Attribute
Description
13
RW1C
Auto CMD19 Error
In Re-Tuning Mode 3, this bit indicates that in the execution of Auto CMD19 automatically
issued by this SD card interface, a timeout or a bus conflict error has occurred, or
re-tuning has failed.
Set/Reset
Condition
Set
With the Auto CMD19 Error Status Enable bit in the Error
Interrupt Status Enable Register set to 1 and Auto CMD19
automatically issued by the SD card interface, if the SD card
interface detects a timeout or a bus conflict while receiving a
tuning pattern or re-tuning fails, this bit is set to 1.
If the Auto CMD19 Error Status Enable bit in the Error
Interrupt Status Enable Register is 1 and 1 is written to the
Force Event for Auto CMD19 bit in the Force Event Register
for Error Interrupt Status, this bit is set to 1.
Reset ("0")
System reset
Software Reset For All
1 Write
12
RW1C
Boot Acknowledge Error
This bit indicates whether the boot acknowledge data that the SD card interface has
received has an error.
Set/Reset
Condition
Set
With the Boot Ack Enable for MMC bit in the MMC/eSD
Control Register set to 1 and the Boot Acknowledge Error
Status Enable bit in the Error Interrupt Status Enable Register
set to 1, if the SD card interface receives the boot
acknowledge data that is not 010 on the DAT0 line, this bit is
set to 1.
If the Boot Acknowledge Error Status Enable bit in the Error
Interrupt Status Enable Register is 1 and 1 is written to the
Force Event for Boot Acknowledge bit in the Force Event
Register for Error Interrupt Status, this bit is set to 1.
Reset ("0")
System reset
Software Reset For All
1 Write
For other details of this register, refer to SD Specifications Part A2.