SPRUJB6B November 2024 – May 2025 AM2612
The MMCSD controller has separate bus interface and functional clocks. Table 13-239 details the MMCSD controller clocks, max frequencies, and clock sources.
| Clock Signal | Max Freq | Reference / Source | Comments |
|---|---|---|---|
| CLK Interface clock | 100 MHz | SYS_CLK / 2 | SYS_CLK |
| CLKADPI Functional clock | 48 MHz | PER_HSDIV0_CLKOUT1 / 4 | MMCSD_FCLK from PER_HSDIV0_CLKOUT1 |
| CLK32 Input de-bounce clock | 32 KHz | RCCLK_32K | MMCSD_32K_CLK from RCOSC32K |
Maximum MMC_CLK signal frequency is 48 MHz.