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doc(sdmmc): aadd UHS1 support for DDR50 / SDR50
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@ -83,14 +83,17 @@ Supported Speed Modes
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SDMMC Host driver supports the following speed modes:
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- Default Speed (20 MHz): 1-line or 4-line with SD cards, and 1-line, 4-line, or 8-line with 3.3 V eMMC
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- High Speed (40 MHz): 1-line or 4-line with SD cards, and 1-line, 4-line, or 8-line with 3.3 V eMMC
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- High Speed DDR (40 MHz): 4-line with 3.3 V eMMC
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.. list::
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- Default Speed (20 MHz): 1-line or 4-line with SD cards, and 1-line, 4-line, or 8-line with 3.3 V eMMC
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- High Speed (40 MHz): 1-line or 4-line with SD cards, and 1-line, 4-line, or 8-line with 3.3 V eMMC
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:SOC_SDMMC_UHS_I_SUPPORTED: - UHS-I 1.8 V, SDR50 (100 MHz): 4-line with SD cards
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:SOC_SDMMC_UHS_I_SUPPORTED: - UHS-I 1.8 V, DDR50 (50 MHz): 4-line with SD cards
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- High Speed DDR (40 MHz): 4-line with 3.3 V eMMC
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Speed modes not supported at present:
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- High Speed DDR mode: 8-line eMMC
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- UHS-I 1.8 V modes: 4-line SD cards
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Using the SDMMC Host Driver
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@ -83,14 +83,17 @@ SDMMC 主机驱动
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SDMMC 主机驱动支持以下速率模式:
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- 默认速率 (20 MHz):对于 SD 卡,支持 1 线或 4 线传输;对于 3.3 V eMMC,支持 1 线、4 线或 8 线传输。
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- 高速模式 (40 MHz):对于 SD 卡,支持 1 线或 4 线传输;对于 3.3 V eMMC,支持 1 线、4 线或 8 线传输。
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- 高速 DDR 模式 (40 MHz):对于 3.3 V eMMC,支持 4 线传输。
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.. list::
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- 默认速率 (20 MHz):对于 SD 卡,支持 1 线或 4 线传输;对于 3.3 V eMMC,支持 1 线、4 线或 8 线传输。
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- 高速模式 (40 MHz):对于 SD 卡,支持 1 线或 4 线传输;对于 3.3 V eMMC,支持 1 线、4 线或 8 线传输。
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:SOC_SDMMC_UHS_I_SUPPORTED: - UHS-I 1.8 V SDR50 模式 (100 MHz):支持 4 线 SD 卡传输。
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:SOC_SDMMC_UHS_I_SUPPORTED: - UHS-I 1.8 V DDR50 模式 (50 MHz):支持 4 线 SD 卡传输。
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- 高速 DDR 模式 (40 MHz):对于 3.3 V eMMC,支持 4 线传输。
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当前尚不支持的速率模式:
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- 高速 DDR 模式:不支持 8 线 eMMC 传输
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- UHS-I 1.8 V 模式:不支持 4 线 SD 卡传输
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使用 SDMMC 主机驱动
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