How To Disable Dma On Pld -

Every PCIe function has a Command Register at offset 0x04. is the "Bus Master" bit. This bit enables the device to issue DMA requests.

This requires an internal TLP filter in your PLD logic: how to disable dma on pld

Some PLDs have dedicated DMA request/grant pins. Pulling these inactive or asserting a global disable input can stop all DMA activity. Every PCIe function has a Command Register at offset 0x04

always @(posedge clk) begin if (security_tamper | power_fault) begin dma_force_disable <= 1'b1; end else begin dma_force_disable <= 1'b0; end end end else begin dma_force_disable &lt

If you need to temporarily disable DMA for debugging purposes but want to keep the infrastructure: