ARM Cortex-A5
The ARM Cortex-A5 is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2009.[1]
| General information | |
|---|---|
| Launched | 2011[1] |
| Designed by | ARM Holdings |
| Common manufacturer(s) | |
| Performance | |
| Max. CPU clock rate | 233 MHZ to 1.00 GHZ |
| Cache | |
| L1 cache | 4–64 KB/4–64 KB |
| Architecture and classification | |
| Instruction set | ARMv7-A |
| Physical specifications | |
| Cores |
|
Overview
The Cortex-A5 is intended to replace the ARM9 and ARM11 cores for use in low-end devices.[1] The Cortex-A5 offers features of the ARMv7 architecture focusing on internet applications e.g. VFPv4 and NEON advanced SIMD.[2]
Key features of the Cortex-A5 core are:
- Single-issue, in-order microarchitecture with an 8-stage pipeline[1]
- NEON SIMD instruction set extension (optional)
- VFPv4 floating-point unit (optional)
- Thumb-2 instruction set encoding
- Jazelle RCT
- 1.57 DMIPS / MHz
Chips
Several system-on-chips (SoC) have implemented the Cortex-A5 core, including:
- Actions Semiconductor ATM7029 (gs702a) is a quad-core Cortex-A5 configuration
- AMD APUs include a Cortex-A5 as a security co-processor[3]
- Amlogic S805, M805 and A111
- Analog Devices ADSP-SC57x, ADSP-SC58x series ARM Cortex-A5 + SHARC+ multicore DSP
- Atmel SAMA5Dxx
- Freescale Vybrid Series
- NTC Module 1879VM8Ya (penta-core Cortex-A5, up to 800 MHz)
- Qualcomm Snapdragon S1 MSM7x25A / MSM7x27A (up to 1.0GHz + Adreno 200)
- Qualcomm Snapdragon S4 Play
- Samsung Exynos 7420 (Cortex-A5 as an audio DSP)[4]
- Spreadtrum SC8810 (single core A5 1 GHz + Mali400 GPU)
- All AMD CPUs since the Zen microarchitecture contain a Cortex-A5 as a Platform Security Processor[5]
Development platform
| Name | Processor | Controller Board | USB | serial ports | Ethernet | HDMI | LCD | CAN | Other | Operating system |
|---|---|---|---|---|---|---|---|---|---|---|
| MYD-JA5D2X | Atmel SAMA5D2 Cortex-A5 | MYC-JA5D2X | 3 x USB Host(1 x USB HSIC ) | 2 x RS232 (1 x Debug),1 xRS485 | 1 x 10/100Mpbs Ethernet | 0 | 1 x LCD | 1 x CAN | 1 x LPFMC | Linux 4.1 |
| MYD-JA5D44 | Atmel SAMA5D4 Cortex-A5 | MYC-JA5D44 | 3 x USB | 2 x RS232 (1 x Debug),1 x RS485 | 2 x 10/100Mpbs Ethernet | 1 x HDMI | 1 x LCD | 1 x CAN | Linux 3.18 | |
| MYD-SAMA5D3X | Atmel SAMA5D3 Cortex-A5 | 512/256MB DDR2, 256MB Nand Flash,16MB Nor Flash,4MB Data Flash | 2 x USB Host,1 x USB OTG | 2 x RS232 (1 x Debug),1 x RS485 | Gigabit Ethernet | 1 x HDMI | 1 x LCD | 2 x CAN | Linux 3.6.9, Android 4.0.4 |
See also
References
- Jon Stokes (Oct 23, 2009). "ARM fills out CPU lineup with Cortex A5". Ars Technica. Retrieved 2012-10-18.
- "Cortex-A5 Processor". February 2015.
- Ryan Smith (2012-06-13). "AMD 2013 APUs To Include ARM Cortex-A5 Processor For TrustZone Capabilities". AnandTech. Retrieved 2012-10-17.
- "The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC". AnandTech. Retrieved 2015-06-15.
- Buhren, Robert; Eichner, Alexander (2020-08-05). "All You Ever Wanted to Know about the AMD Platform Security Processor and were Afraid to Emulate - Inside a Deeply Embedded Security Processor". presentation slides (PDF). Black Hat USA 2020 (presentation). Archived from the original on 2023-06-22. Retrieved 2023-06-22.
The Cortex used inside the AMD CPU is a Cortex A5
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