Table 5-44 MMC2 Signal Descriptions| SIGNAL NAME [1] | PIN TYPE [2] | DESCRIPTION [3] | ANB PIN [4] |
|---|
| MMC2_CLK (1) | IO | MMC/SD/SDIO Clock | R23 |
| MMC2_CMD | IO | MMC/SD/SDIO Command | U23 |
| MMC2_SDCD (2) | I | SD Card Detect | B14, D7, T20 |
| MMC2_SDWP (2) | I | SD Write Protect | A6, B13, T21 |
| MMC2_DAT0 | IO | MMC/SD/SDIO Data | U22 |
| MMC2_DAT1 | IO | MMC/SD/SDIO Data | T22 |
| MMC2_DAT2 | IO | MMC/SD/SDIO Data | T23 |
| MMC2_DAT3 | IO | MMC/SD/SDIO Data | R22 |
(1) For MMC2 to work properly, the CTRLMMR_PADCONFIG66 register must be configured to set (1) the RXACTIVE bit and reset (0) the TX_DIS bit.
(2) These MMCSD2 host controller input signals must be multiplexed to pins which are powered by the VDDSHV1 IO power rail rather than the VDDSHV4 IO power rail when the MMC2 port is connected to a UHS-I SD Card that requires the VDDSHV4 IO power rail to change its operating voltage from 3.3V to 1.8V when transitioning to one of the UHS-I data transfer modes.