SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
The MMCSD instance is hereinafter referred to as MMCSDi module.
This section describes the MMCSDi external connections (environment).
The MMCSD (see the device specific datasheet for supported instances) can be used for connection to 1, 4, or 8-bit devices (dedicated for connection to eMMC devices). The MMCSD (see the device specific datasheet for supported instances) can be used for connection to 1 or 4-bit devices (dedicated for connection to SD or SDIO devices). For each MMCSD an integrated UHS-I PHY provides interface to external device.
Figure 12-165 shows the MMCSDi (where i represents a valid instance of MMCSD in a domain. See the device specific datasheet for available domains and MMCSD instances) connected to MMC, SD, or SDIO device.
Table 12-194 describes the MMCSDi I/O signals.
Module Pin(4) | Device Level Signal | I/O(1) | Description |
---|---|---|---|
MMCSDi(3) | |||
CLK | MMCi(3)_CLK | O | External Clock |
CMD | MMCi(3)_CMD | I/O | Command Line |
DAT[x:0](5) | MMCi(3)_DAT[x:0] | I/O | Data Signals |
DS | MMCi(3)_DS | I | Data Strobe |
CALPAD | MMCi(3)_CALPAD(2) | A | PHY Calibration Resistor |
WP | MMCi(3)_SDWP | I | SD Card Write Protect |
CD | MMCi(3)_SDCD | I | SD Card Detect |
For more information about device level signals (pull-up/down resistors, buffer type, multiplexing and others), refer to the device-specific Datasheet.