ASIC/FPGA Design and Verification Out Source Services

The response format R1 contains a 32-bit field named card status. This field is intended to transmit the card's status information to the host. In my slave implementation the status is tracked via a state machine.

1. The SDIO master reads and decodes the status.
2. The following is the report generated by the SDIO master.
3. The slave's status is shown in waves. For debug purposes an ASCII string is also driven on waves. This is explained in detail at Displaying State Machine Data With ASCII..
   SD flash state machine: enumerate constants for a state machine using a perl script.


4. Please note that a newer version of the SD slave exists. It supports Samsung flash instead of xilinx ROM. It is written in VHDL, supports more SD features, like SD read burst, and has an improved test bench. link to newer version

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SDIO master report to Simulation log

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