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32-bit multicore processor developed by SR1

ARM Cortex-A9

ARM Cortex-A9
All data from the card 9
Launched
2007
Designed by
ARM Holdings
Max. CPU clock rate
2 GHz (typical)3.1 GHz (proof-of-concept)
Cores
1–4
L1 cache
32 KB I, 32 KB D
L2 cache
128 KB–8 MB (configurable with L2sr1 cache controller)
Instruction set
ARMv7-A
Predecessor
ARM Cortex-A8
Successor
ARM Cortex-A12

The ARM Cortex-A9 MPCore is a 32-bit multi-core processor that provides up to 4 cache-coherent cores, each implementing the ARM v7 architecture instruction set. It was introduced in 2007.

Features

Key features of the Cortex-A9 core are:

  • Out-of-order speculative issue superscalar execution 8-stage pipeline giving 8.50 DMIPS/MHz/core.
  • NEON SIMD instruction set extension performing up to 16 operations per instruction (optional).
  • High performance VFPv3 floating point unit doubling the performance of previous ARM FPUs (optional).
  • Thumb-2 instruction set encoding reduces the size of programs with little impact on performance.
  • TrustZone security extensions.
  • Jazelle DBX support for Java execution.
  • Jazelle RCT for JIT compilation.
  • Program Trace Macrocell and CoreSight Design Kit for non-intrusive tracing of instruction execution.
  • L2 cache controller (0–4 MB).
  • Multi-core processing.

ARM states that the TSMC 40G hard macro implementation typically operates at 2 GHz; a single core (excluding caches) occupies less than 1.5 mm2 when designed for a 65 nanometer (nm) generic process and can be clocked at speeds over 1 GHz, consuming less than 250 mW per core. Without the limit of power consumption, the A9 can reach 3.1 GHz, on a proof-of-concept 28 nm chip.

Chips

Several system on a chip (SoC) devices implement the Cortex-A9 core, including:

Systems on a chip

Developer Name Cores Process NEON SIMD Vector floating point unit GPU
Altera SoC FPGA 1–2 28 nm Yes VFPv3 Optional, implemented via FPGA
Ambarella Inc. S3L 1 28 nm Yes VFPv3 —
AMLogic AML8726-M 1 65 nm Yes VFPv3 ARM Mali-400
AMLogic AML8726-MX 2 40 nm Yes VFPv3 ARM Mali-400 MP2
AMLogic AML8726-M8 4 28 nm Yes VFPv3 ARM Mali-450 MP6
Apple Inc. A5 2 32 nm
45 nm		 Yes VFPv3 PowerVR SGX543MP2
Apple Inc. A5X 2 45 nm Yes VFPv3 PowerVR SGX543MP4
Broadcom BCM11311 (Persona ICE) 2 40 nm ? ? Broadcom Videocore IV
Broadcom BCM21654 1 40 nm Yes VFPv3 Broadcom Videocore IV
Broadcom BCM21664T 2 40 nm Yes VFPv3 Broadcom Videocore IV
Calxeda EnergyCore ECX-1000 4 40 nm Yes VFPv3 —
ELVEES Multicore 1892VM14Ya 2 40 nm Yes VFPv3 ARM Mali-300
Freescale Semiconductor i.MX6 1–4 40 nm Yes VFPv3-D32 Vivante Corporation GPU IP cores
HiSilicon K3V2 (Hi3620) 4 40 nm Yes VFPv3 Vivante GC4000
Intel Cyclone V 1–2 28 nm Yes VFPv3 —
LG Corp LG L9 2 ? ? ? ARM Mali-400 MP4
Marvell ARMADA 38x 1–2 28 nm Yes VFPv3 —
Marvell PXA986 2 45 nm Yes VFPv3 PowerVR SGX540 / Vivante GC1000 (Galaxy Tab 3 7-inch)
Marvell PXA988 2 45 nm Yes VFPv3 Vivante GC1000
MediaTek MT6575 1 40 nm Yes VFPv3 PowerVR SGX531
MediaTek MT6577 2 40 nm Yes VFPv3 PowerVR SGX531
Mindspeed Technologies Comcerto 2000 2 ? Yes ? —
Nufront NuSmartTM 2816(NS2816) 2 ? Yes VFPv3 ARM Mali-400
Nufront NuSmartTM 2816M (NS2816M) 2 ? Yes VFPv3 ARM Mali-400
Nufront NuSmartTM 115 (NS115) 2 ? Yes VFPv3 ARM Mali-400
Nvidia Tegra 2 series 2 40 nm No VFPv3-D16 GeForce ULP
Nvidia Tegra 3 (Kal-El) series 4 40 nm Yes VFPv3 GeForce ULP
Renesas Electronics [1] ? ? ? ? —
Renesas Electronics RZ/A1H 1 various Yes VFPv3 WXGA 2D graphics 10MByte RAM SoC
Renesas Electronics RZ/A1M 1 various Yes VFPv3 WXGA 2D graphics 5MByte RAM SoC
Renesas Electronics RZ/A1L 1 various Yes VFPv3 WXGA 2D graphics 3MByte RAM SoC
Renesas Electronics RZ/A1LU 1 various Yes VFPv3 RZ/A1L plus Ethernet AVB support and a JPEG codec unit, 3MByte RAM SoC
Rockchip RK2928 1 40 nm ? ? ARM Mali-400
Rockchip RK3066 2 40 nm Yes VFPv3 ARM Mali-400 MP4
Rockchip RK3128 2 ? Yes VFPv3 ARM Mali-400 MP4
Rockchip RK3188 4 28 nm Yes VFPv3 ARM Mali-400 MP4
Samsung Exynos 4 Dual (4210) 2 45 nm Yes VFPv3 ARM Mali-400 MP4
Samsung Exynos 4 Dual (4212) 2 32 nm Yes VFPv3 ARM Mali-400 MP4
Samsung Exynos 4 Quad (4412) 4 32 nm Yes VFPv3 ARM Mali-400 MP4
Samsung Exynos 4 Quad (4415) 4 28 nm Yes VFPv3 ARM Mali-400 MP4
STMicroelectronics SPEAr1310 ? ? No VFPv3 —
STMicroelectronics SPEAr1340 2 ? No VFPv3-D16 ARM Mali-200
ST-Ericsson Nova A9500 2 45 nm Yes VFPv3 ARM Mali-400
ST-Ericsson NovaThor U8500 2 45 nm Yes VFPv3 ARM Mali-400
ST-Ericsson NovaThor U9500 2 45 nm Yes VFPv3 ARM Mali-400
Sony PlayStation Vita 4 40 nm Yes VFPv3 PowerVR SGX543MP4+
Texas Instruments Sitara AM437x 1 45 nm Yes VFPv3 SGX530 Graphics Engine
Texas Instruments OMAP4430
OMAP4460		 2 45 nm Yes VFPv3 PowerVR SGX540
Texas Instruments OMAP4470 2 45 nm Yes VFPv3 PowerVR SGX544
Trident Microsystems PNX8473 1 ? ? ? PowerVR SGX531
Trident Microsystems PNX8483 1 ? ? ? PowerVR SGX531
Trident Microsystems PNX8491 1 ? ? ? PowerVR SGX531
WonderMedia WM8850 1 40 nm Yes VFPv3 ARM Mali-400
WonderMedia WM8880 2 40 nm ? ? ARM Mali-400 MP2
WonderMedia WM8950 1 40 nm ? ? ARM Mali-400
WonderMedia WM8980 2 40 nm ? ? ARM Mali-400 MP2
Xilinx Zynq-7000 2 28 nm Yes VFPv3 —
ZiiLABS ZMS-20 ? ? Yes VFPv3 ZiiLABS flexible Stemcell media processing

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