Learn APB peripheral design with a complete worked APB4 GPIO controller RTL example — register map, PREADY wait states, PSLVERR, PPROT, byte strobes, and synthesisable SystemVerilog implementation.
Designing an APB Peripheral — Complete RTL Example Read More »
Learn APB5 interface parity protection — odd parity scheme, Check_Type property, 14 parity check signals, enable conditions, error detection behaviour, and RTL implementation for safety-critical SoCs.
AMBA APB5 Parity Protection — Complete Guide Read More »
Learn AMBA APB wake-up and user signalling — PWAKEUP timing for glitch-free clock gating, PAUSER/PWUSER/PRUSER/PBUSER validity windows, timing rules, and APB5 sideband signal recommendations.
AMBA APB Sideband Signals Explained Read More »
Learn AMBA APB operating states — IDLE, SETUP, and ACCESS. Understand APB FSM transitions, signal behaviour, wait states, back-to-back transfers, and complete protocol timing.
IDLE, SETUP and ACCESS States in APB Read More »
Learn APB protection using PPROT and Realm Management Extension (RME). Understand PPROT[2:0], PNSE, privilege levels, secure vs non-secure access, Root/Realm address spaces, and secure peripheral register gating.
AMBA APB Protection Signals — PPROT and PNSE Explained Read More »
Learn how PSTRB write strobes work in AMBA APB. Understand sparse byte-lane writes, bit-to-byte mapping, timing rules, requester/completer compatibility, and practical byte and half-word write examples.
Understanding PSTRB Write Strobes in AMBA APB Read More »
Learn how PSLVERR works in AMBA APB. Understand when PSLVERR is valid, read and write transfer error behavior, timing requirements, register update rules, and how APB errors map to AXI and AHB responses.
AMBA APB PSLVERR Explained Read More »
Learn how AMBA APB read transfers work in detail. Understand Setup and Access phases, PRDATA timing, PREADY wait-state insertion, read timing behavior, and key differences between APB read and write transfers.
AMBA APB Read Transfer Explained Read More »
Learn how AMBA APB write transfers work in detail. Understand Setup and Access phases, PREADY wait-state insertion, signal stability requirements, timing behavior, and back-to-back APB write transfers.
AMBA APB Write Transfer Explained Read More »
Learn every signal in the AMBA APB interface in detail. Understand PCLK, PRESETn, PSEL, PENABLE, PADDR, PREADY, PSLVERR, APB4/APB5 signals, parity, user signals, timing, and validity rules.
AMBA APB Signal Descriptions Explained Read More »
