sdhci register dump
时间: 2023-09-15 18:22:30 浏览: 122
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SDHCI (Secure Digital Host Controller Interface) is a type of interface that allows a computer to communicate with SD (Secure Digital) and MMC (Multimedia Card) memory cards.
The "sdhci register dump" command is used to display the current values of the SDHCI controller registers. This information can be useful when troubleshooting issues with SD card communication or performance.
To execute the "sdhci register dump" command, you will need to have access to the command prompt or terminal on your computer. The exact syntax of the command may vary depending on your operating system and the specific SDHCI controller being used.
Here is an example of what the output of the "sdhci register dump" command might look like:
```
SDHCI Version: 3.0
Vendor: ABC Corporation
Product: SDHCI Controller
Controller Version: 1.2
Supported Modes: SD, MMC
Clock Frequency: 50 MHz
Bus Width: 4-bit
Base Address: 0x12345678
Registers:
SDHC_CTRL: 0x00000001
SDHC_CMD: 0x00000002
SDHC_DATA: 0x00000000
SDHC_INT_STATUS: 0x00000008
SDHC_INT_ENABLE: 0x00000008
SDHC_CAPABILITIES: 0x0000003F
```
This output shows the version, vendor, and product information for the SDHCI controller, as well as the clock frequency, bus width, and base address. It also lists the current values of several important registers, including the control register, command register, data register, interrupt status register, interrupt enable register, and capabilities register.
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