CLKDIV
Clock Divider Register
Module Instance | Base Address | Register Address |
---|---|---|
sdm_i_sdmmc_sdmmc_block | 0xFF8D1000 | 0xFF8D1008 |
Size: 32
Offset: 0x8
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 |
CLK_DIVIDER3 RO 0x0 |
CLK_DIVIDER2 RO 0x0 |
||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CLK_DIVIDER1 RO 0x0 |
CLK_DIVIDER0 RW 0x0 |
CLKDIV Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
31:24 | CLK_DIVIDER3 |
Clock divider-3 value. Clock division is 2*n. For example, value of 0 means divide by 2*0 = 0 (no division, bypass), a value of 1 means divide by 2*1 = 2, a value of “ff” means divide by 2*255 = 510, and so on. In MMC-Ver3.3-only mode, bits not implemented because only one clock divider is supported. |
RO | 0x0 |
23:16 | CLK_DIVIDER2 |
Clock divider-2 value. Clock division is 2*n. For example, value of 0 means divide by 2*0 = 0 (no division, bypass), value of 1 means divide by 2*1 = 2, value of “ff” means divide by 2*255 = 510, and so on. In MMC-Ver3.3-only mode, bits not implemented because only one clock divider is supported. |
RO | 0x0 |
15:8 | CLK_DIVIDER1 |
Clock divider-1 value. Clock division is 2*n. For example, value of 0 means divide by 2*0 = 0 (no division, bypass), value of 1 means divide by 2*1 = 2, value of “ff” means divide by 2*255 = 510, and so on. In MMC-Ver3.3-only mode, bits not implemented because only one clock divider is supported |
RO | 0x0 |
7:0 | CLK_DIVIDER0 |
Clock divider-0 value. Clock division is 2*n. For example, value of 0 means divide by 2*0 = 0 (no division, bypass), value of 1 means divide by 2*1 = 2, value of “ff” means divide by 2*255 = 510, and so on. |
RW | 0x0 |