rst_n

         Hardware Reset Register
      
Module Instance Base Address Register Address
i_sdmmc_sdmmc 0xFF808000 0xFF808078

Offset: 0x78

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Reserved

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Reserved

card_reset

RW 0x1

rst_n Fields

Bit Name Description Access Reset
0 card_reset
Hardware reset.
                                                 1  Active mode
                                                 0  Reset
These bits cause the cards to enter pre-idle state, which requires them to be re-initialized.
■ CARD_RESET[0] should be set to 1’b0 to reset card number 0
■ CARD_RESET[15] should be set to 1'b0 to reset card number 15.
The number of bits implemented is restricted to NUM_CARDS.
Value Description
0 DEASSERT
1 ASSERT
RW 0x1