Datasheet

Table Of Contents
40.8.19 Normal Interrupt Status Enable Register: e.MMC
Name:  NISTER
Offset:  0x34
Reset:  0x0000
Property:  -
Bit 15 14 13 12 11 10 9 8
BOOTAR CINT
Access
R/W R/W
Reset 0 0
Bit 7 6 5 4 3 2 1 0
CREM CINS BRDRDY BWRRDY DMAINT BLKGE TRFC CMDC
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 14 – BOOTAR Boot Acknowledge Received Status Enable
Note:  This register entry is specific to the e.MMC operation mode.
Value Name Description
0
MASKED The BOOTAR status flag in NISTR is masked.
1
ENABLED The BOOTAR status flag in NISTR is enabled.
Bit 8 – CINT Card Interrupt Status Enable
If this bit is set to 0, the peripheral clears interrupt requests to the system. The Card Interrupt detection is
stopped when this bit is cleared and restarted when this bit is set to 1. The user may clear this bit before
servicing the Card Interrupt and may set this bit again after all interrupt requests from the card are
cleared to prevent inadvertent interrupts.
Value Name Description
0
MASKED The CINT status flag in NISTR is masked.
1
ENABLED The CINT status flag in NISTR is enabled.
Bit 7 – CREM Card Removal Status Enable
Value Name Description
0
MASKED The CREM status flag in NISTR is masked.
1
ENABLED The CREM status flag in NISTR is enabled.
Bit 6 – CINS Card Insertion Status Enable
Value Name Description
0
MASKED The CINS status flag in NISTR is masked.
1
ENABLED The CINS status flag in NISTR is enabled.
Bit 5 – BRDRDY Buffer Read Ready Status Enable
Value Name Description
0
MASKED The BRDRDY status flag in NISTR is masked.
1
ENABLED The BRDRDY status flag in NISTR is enabled.
Bit 4 – BWRRDY Buffer Write Ready Status Enable
SAM D5x/E5x Family Data Sheet
SD/MMC Host Controller ...
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1355