Wishbone tutorials & labs.

The most complete Wishbone curriculum on the internet — from first principles (why on-chip buses exist, memory-mapped IO, open-source SoC and FPGA interconnect) before signal descriptions, then through the architecture, the CYC/STB/ACK handshake, read/write/block/RMW cycles, wait states, error and retry, address decoding, byte selects, multi-master arbitration, interconnect design, RISC-V/LiteX integration, AXI/APB comparisons, performance, RTL design, DMA, verification, debugging, and interview mastery.