ARM946E-S

The ARM946E-S processor is a 32-bit embedded processor based upon the ARMv5TE architecture. It supports 32-bit ARM instructions, including a number of Enhanced Digital Signal Processing (DSP) instructions, as well as 16-bit Thumb instructions for high code density while maintaining good performance. The ARM946E-S processor uses the Harvard architecture (separate instruction and data interface), and also supports Instruction TCM and Data TCM, Instruction Cache and Data Cache, and an MPU. In addition, it can also be used with optional VFP9-S floating point coprocessor for floating point intensive applications, or optional MOVE coprocessor for video codec applications. The ARM946E-S processor is a member of the widely adopted ARM9E processor family and can be used with large range of Real Time Operating Systems (RTOS).

Core Overview
Family	ARM9
Architecture	ARMv5TE
Product Line	Embedded
Pipeline Stages	5
Instruction Set
ARM Instructions
Thumb Instructions
Thumb2 Instructions
DSP Instructions
SIMD Instructions
Memory Interface
Cache 0 to 1MB
TCM 0 to 1MB
MMU
MPU
Debug Interface
ETM9, CoreSight

Documents

• ARM946E-S Technical Reference Manual
• ARM946E-S Overview