Datasheet

Table Of Contents
status is effective. If a non-zero value is set to INTPSEL, INT_A, INT_B or INT_C is used as device
interrupts.
This bit can only be set to 1 if NISTER.CREM is set to 1. An interrupt can only be generated if
NISIER.CREM is set to 1.
Value Description
0
No card interrupt
1
Card interrupt
Bit 7 – CREM Card Removal
Note: 
This register entry is specific to the SD/SDIO operation mode.
This status is set to 1 if Card Inserted (CARDINS) in PSR changes from 1 to 0. When the user writes this
bit to 1 to clear this status, the status of PSR.CARDINS must be confirmed because the card detect state
may possibly be changed when the user clears this bit and no interrupt event can be generated.
This bit can only be set to 1 if NISTER.CREM is set to 1. An interrupt can only be generated if
NISIER.CREM is set to 1.
Writing this bit to 1 clears this bit.
Value Description
0
Card state unstable or card inserted
1
Card removed
Bit 6 – CINS Card Insertion
Note: 
This register entry is specific to the SD/SDIO operation mode.
This status is set if Card Inserted (CARDINS) in PSR changes from 0 to 1. When the user writes this bit to
1 to clear this status, the status of PSR.CARDINS must be confirmed because the card detect state may
possibly be changed when the user clears this bit and no interrupt event can be generated.
This bit can only be set to 1 if NISTER.CINS is set to 1. An interrupt can only be generated if
NISIER.CINS is set to 1.
Writing this bit to 1 clears this bit.
Value Description
0
Card state unstable or card removed
1
Card inserted
Bit 5 – BRDRDY Buffer Read Ready
This status is set to 1 if the Buffer Read Enable (BUFRDEN) changes from 0 to 1. Refer to BUFRDEN in
PSR.
This bit can only be set to 1 if NISTER.BRDRDY is set to 1. An interrupt can only be generated if
NISIER.BRDRDY is set to 1.
Writing this bit to 1 clears this bit.
Value Description
0
Not ready to read buffer
1
Ready to read buffer
Bit 4 – BWRRDY Buffer Write Ready
This status is set to 1 if the Buffer Write Enable (BUFWREN) changes from 0 to 1. Refer to BUFWREN in
PSR.
SAM D5x/E5x Family Data Sheet
SD/MMC Host Controller ...
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1348