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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1461188/am6442-does-am64x-sdk-10-1-support-high-speed-ddr-aka-ti-otap-del-sel-ddr52-0x5-reference-in-am62x-removal
工具与软件：
需要确认的是、对于不支持的 DDR、AM64x 具有与 AM62x 相同的限制。
否 AM64x 器件在 MMC0端口上支持高速 DDR 模式。
此致、 Paul
