# SD/SDIO hardware

Source: [https://docs.qualcomm.com/doc/80-88500-4/topic/97_SD_SDIO_hardware.html](https://docs.qualcomm.com/doc/80-88500-4/topic/97_SD_SDIO_hardware.html)

The SD/SDIO storage controller provides an interface for SD cards and handles the flow
    the data between SD/SDIO and the CPU.

The table lists the storage controller capabilities:

Table : SD storage controller and capabilities

| Slots | Bits | I/O voltage (V) | Card voltage (V) | Max frequency | Timing modes | Functions |
| --- | --- | --- | --- | --- | --- | --- |
| SDC2 | 4 | 1.8/2.95 | 3.0 | <ul class="ul" id="SD_SDIO_hardware_97__ul_ftc_mp4_4xb"><br>                <li class="li">SDR – 200 MHz</li><br><br>                <li class="li">DDR – 50 MHz</li><br><br>              </ul> | DS, HS, SDR12, SDR25, SDR50, SDR104, and DDR50 | SDIO 3.0/SD 3.0 |
| SDC4 | 4 | 1.8 | 1.8 | <ul class="ul" id="SD_SDIO_hardware_97__ul_kfm_mp4_4xb"><br>                <li class="li">SDR – 100 MHz</li><br><br>                <li class="li">DDR – 50 MHz</li><br><br>              </ul> | DS, HS, SDR12, SDR25, SDR50, and DDR50 | SDIO 3.0/SD 3.0 |

| Hardware features | Support | Description |
| --- | --- | --- |
| SDCC5\* core | 2 cores | <ul class="ul" id="SD_SDIO_hardware_97__ul_ms1_544_4xb"><br>                <li class="li">SDC2 – 4 bit</li><br><br>                <li class="li">SDC4 – 4 bit</li><br><br>              </ul> |
| Clock speeds supported | <ul class="ul" id="SD_SDIO_hardware_97__ul_c2l_544_4xb"><br>                <li class="li">200 MHz</li><br><br>                <li class="li">100 MHz</li><br><br>              </ul> | <ul class="ul" id="SD_SDIO_hardware_97__ul_p1g_544_4xb"><br>                <li class="li">SDC2 at SDR104</li><br><br>                <li class="li">SDC4 at SDR50</li><br><br>              </ul> |
| SD hot-plug detect | Yes | GPIO\_95 is used in the Qualcomm reference design |
| Low-power mode (LPM) | Yes | Only VDD (VCC) goes to 0 V on runtime suspend and system suspend |
| \*SDCC5 is the fifth generation of the SDCC core. | \*SDCC5 is the fifth generation of the SDCC core. | \*SDCC5 is the fifth generation of the SDCC core. |

Note: The internal DLL and pad configuration is different for each SDC slot, so each SDC slot supports different timing modes.

## SDCC memory address

Figure : SDC 2 memory address
        
        ![](data:image/png;base64,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)

Figure : SDC 4 memory address
        
        ![](data:image/png;base64,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)

## Power rails

Table : SD card power rails

| Voltage rail | Voltage level (V) | Comments |
| --- | --- | --- |
| VREG S4 | 1.8 | SD card detect (GPIO) |
| VREG L9C | 2.95 | SD card |
| VREG L6C | 1.8/2.95 | SD card I/O |
| VREG S4 | 1.8 | SDIO card I/O |

## SDCC clocks

Table :  SDC2 clocks

| Clock | Operating frequency | Comments |
| --- | --- | --- |
| cc\_sdcc2\_h\_clk (HCLK) | 4 kHz to 128 MHz | HCLK |
| cc\_sdcc2\_m\_clk (MCLK) | 100 kHz to 208 MHz | MCLK |
| sdcc2\_clk\_fb | 100 MHz | Feedback clock from the PAD; used up to 100 MHz |

Table : SDC4 clocks

| Clock | Operating frequency | Comments |
| --- | --- | --- |
| cc\_sdcc4\_h\_clk (HCLK) | 4 kHz to 128 MHz | HCLK |
| cc\_sdcc4\_m\_clk (MCLK) | 100 kHz to 208 MHz | MCLK |
| sdcc4\_clk\_fb | 100 MHz | Feedback clock from the PAD; used up to 100 MHz |

**Parent Topic:** [SD/SDIO](https://docs.qualcomm.com/doc/80-88500-4/topic/96_SD_SDIO.html)

Last Published: Aug 18, 2023

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