Protocol

SDIO

Secure Digital I/O

Lab ready Full lab

SD card command/response/data protocol extended so non-memory functions (Wi-Fi, GPS, Bluetooth) enumerate as SDIO devices. CMD/DAT lines, CRC7/CRC16, and bus-width or speed-mode switching are core mechanics. Hosts must handle function enables, CIS tuples, and DAT1 interrupts.

Tags

sdflashiocrc

Sources

  • SD Association SDIO Simplified Specification

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