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2.1. About the programmer’s model

This section describes the basic details of the processor that are required to write functional code. It does not include internal microarchitecture details.

The processor implements ARMv7-A. This includes:

  • the 32-bit ARM instruction set

  • the 16-bit and 32-bit Thumb-2 instruction set

  • the Thumb-2EE instruction set

  • the TrustZone technology

  • the NEON technology.

For more detail information on the:

  • ARM instruction set, see the ARM Architecture Reference Manual

  • Thumb-2 instruction set, see the ARM Architecture Reference Manual, Thumb-2 supplement

  • Thumb-2EE architecture, see the ARM Architecture Reference Manual, Thumb-2 Execution Environment supplement

  • TrustZone technology, see the ARM Architecture Reference Manual, Security Extensions supplement

  • NEON instruction set, see the ARM Architecture Reference Manual, Advanced SIMD Extension and VFPv3 supplement.

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