CTYPE

         Card Type Register
      
Module Instance Base Address Register Address
i_sdmmc_sdmmc_block_1 0xFF8D1000 0xFF8D1018

Size: 32

Offset: 0x18

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

CARD0_WIDTH1

RW 0x0

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

Reserved

CARD0_WIDTH2

RW 0x0

CTYPE Fields

Bit Name Description Access Reset
16 CARD0_WIDTH1
One bit per card indicates if card is 8-bit:
                                                 0-Non 8-bit mode
                                                 1-8-bit mode
Bit[31] corresponds to card[15]; bit[16] corresponds to card[0].
Value Description
0x0 Non 8-bit mode
0x1 8-bit mode
RW 0x0
0 CARD0_WIDTH2
One bit per card indicates if card is 1-bit or 4-bit:
                                                 0-1-bit mode
                                                 1-4-bit mode
Bit[15] corresponds to card[15], bit[0] corresponds to card[0].
Only NUM_CARDS*2 number of bits are implemented.
Value Description
0x0 1-bit mode
0x1 4-bit mode
RW 0x0