Complete technical reference for AXI4 Read Address Channel - master all AR signals, handshaking protocols, burst address generation, and implementation details for high-performance SoC design.
Address bus width configuration, byte addressing, word alignment, and address space mapping.
Burst length encoding (0-255), transfer count calculation, and burst size limitations.
Size encoding (1, 2, 4, 8, 16, 32, 64, 128 bytes), narrow transfers, and data bus utilization.
FIXED (0x00), INCR (0x01), WRAP (0x10) burst types, address calculation, and boundary conditions.
Normal (0b0), Exclusive (0b1) access types, atomic operations, and locking mechanisms.
Cacheable, Bufferable, Read-Allocate, Write-Allocate encoding (AxCACHE[3:0]) and memory types.
Privileged/Unprivileged, Secure/Non-Secure, Instruction/Data access encoding (ARPROT[2:0]).
QoS identifier (ARQOS[3:0]), traffic prioritization, bandwidth allocation, and arbitration weight.
Memory region encoding (ARREGION[3:0]), address space partitioning, and routing decisions.
Transaction identification, ID width configuration, out-of-order completion tracking, and correlation.
User-defined sideband signals, custom attributes, vendor extensions, and metadata transport.
Handshaking protocol, valid assertion rules, ready deassertion, and timing relationships.
Setup/hold requirements, clock-to-output delays, propagation timing, and critical paths.
Natural alignment requirements, unaligned access handling, and address calculation algorithms.
Address incrementing logic, wrap boundary calculation, and fixed address handling.
State machine design, idle/active states, backpressure handling, and flow control logic.
Multiple outstanding reads, ID management, reordering buffers, and completion tracking.
Address range checking, slave selection, decode logic optimization, and routing decisions.
Address range protection, privilege validation, security attribute checking, and access control.
FIFO depth calculation, buffer sizing, flow control, and backpressure propagation.
Protocol checkers, assertion properties, coverage models, and validation methodology.
Read request generation, address calculation, burst management, and flow control logic.
Address routing, arbitration logic, crossbar connectivity, and multi-master support.
Address channel utilization, burst optimization, latency reduction, and bandwidth maximization.