這東西一直不太懂，今天把它搞懂
讀取66 相當於讀EC的狀態
寫入66 相當於給EC寫入指令，data是放62
從ACPI SPEC來看
The embedded controller contains three registers at two address locations: EC_SC and EC_DATA. The EC_SC, or Embedded Controller Status/Command register, acts as two registers: a status register for reads to this port and acommand register for writes to this port. The EC_DATA (Embedded Controller Data register) acts as a port for transferring data between the host CPU and the embedded controller.
這一段描述EC和BIOS溝通的方式
至於為什麼是60 64，答案在這邊
ACPI SPEC 連結:
https://uefi.org/sites/default/files/resources/ACPI_Spec_6_5_Aug29.pdf
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