ARM Cortex-R4 - 1.2 Compliance

Introduction
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1.2 Compliance
The Cortex-R4 processor complies with, or implements, the specifications described in:
• ARM architecture
• Trace macrocell
• Advanced Microcontroller Bus Architecture
• Debug architecture.
This TRM complements architecture reference manuals, architecture specifications, protocol
specifications, and relevant external standards. It does not duplicate information from these
sources.
1.2.1 ARM architecture
The Cortex-R4 processor implements the ARMv7-R architecture profile that includes the
following architecture extensions:
• Advanced Single Instruction Multiple Data (SIMD) architecture extension for integer and
floating-point vector operations
• Vector Floating-Point version 3 (VFPv3) architecture extension for floating-point
computation that is fully compliant with the IEEE 754 standard
See the ARM Architecture Reference Manual.
1.2.2 Trace macrocell
The Cortex-R4 processor implements the ETM v3.3 architecture profile. See the CoreSight
ETM-R4 Technical Reference Manual.
1.2.3 Advanced Microcontroller Bus Architecture
This Cortex-R4 processor complies with the AMBA 3 protocol. See AMBA AXI Protocol
Specification and AMBA 3 APB Protocol Specification.
1.2.4 Debug architecture
The Cortex-R4 processor implements the ARMv7 Debug architecture that includes support for
CoreSight. See the CoreSight Architecture Specification.