arm

了解ARM Chip

更新記錄

item	note
20160919	第一版

架構	處理器家族
ARMv1	ARM1
ARMv2	ARM2、ARM3
ARMv3	ARM6、ARM7
ARMv4	StrongARM、ARM7TDMI、ARM9TDMI
ARMv5	ARM7EJ、ARM9E、ARM10E、XScale
ARMv6	ARM11、ARM Cortex-M
ARMv7	ARM Cortex-A、ARM Cortex-M、ARM Cortex-R
ARMv8	Cortex-A50

ARM family	ARM architecture	ARM core	Feature
ARM1	ARMv1	ARM1	first implementation
ARM2	ARMv2	ARM2
ARM3	ARMv2a	ARM3
ARM6	ARMv4	ARM60, ARM600,,
ARM7	ARMv3	ARM700..
ARM7T	ARMv4T	ARM7TDMI 3-stage pipeline
ARM7EJ	ARMv5TEJ	ARM7EJ	5-stage pipeline,Thumb, Jazelle DBX
ARM8	ARMv4	ARM810
ARM9T	ARMv4T	ARM9TDMI	5-stage pipeline,Thumb
ARM9E	ARMv5TE	ARM946E-S	Thumb,Enhanced DSP instruction
	ARMv5TEJ	ARM926EJ-S	Thumb, Jazelle DBX, Enhanced DSP instructions
ARM10E	ARMv5TE	6-stage pipeline, Thumb, Enhanced DSP instructions, (VFP)
ARM11	ARMv6	ARM1136J(F)-S	8-stage pipeline, SIMD, Thumb, Jazelle DBX, (VFP), Enhanced DSP instructions
	ARMv6Z	ARM1176JZ(F)-S
Cortex-M
Cortex-A(32bit)	ARMv7-A	Cortext-A7	8-10 stage pipeline, low-power design
		Cortext-A8	VFPv3 FPU / NEON / Jazelle RCT and DAC, 13-stage superscalar pipeline
		Cortext-A9	1–4 SMP cores
		Cortext-A15	1–4 SMP cores,Large Physical Address Extensions (LPAE),15-24 stage pipeline
		Cortext-A17
	ARMv8-A	Cortext-A32
Cortex-A(64bit)

Thumb
ref: 開始大賣的ARM7
還新增了Thumb，也就是精簡過的16位元指令集，讓編譯出來的程式可以縮小程式碼體積，官方表示與標準的ARM指令集相比，可以縮小35％的程式碼體積，又能享受32位元架構所帶來的效能提升
ARM Jazelle 技术软件是功能丰富的多任务 Java 虚拟机 (JVM)
Jazelle DBX 广泛用于为移动设备和其他消费类设备提供高性能 Java，同时不会影响内存消耗、电池寿命或用户体验
SIMD
Single instruction, multiple data
cortex-a17-processor
- scales up to four cores in a single cluster
- big.LITTLE™ design
- 28nm technology

Linux 3.10-based SDK

NVR: 16X1080P NVR

Process Core
- ARM Cortex A17 quad-core@max 1.4GHz
  1MB L2 Cache
  main control process for running peripheral drivers and application
- ARM Cortex A7 single-core@max 900MHz
  Video-relate module control
Video Decoding Standards
- H.265 Main Profile L5.1
- H.264 Baseline/Main/High profile 5.0
- MPEG4
Video Encoding Standard
- H.264 Baseline/Main/High profile L5.1
- MPEG/JPEG
Video Encoding/Decoding
- 4CH 4Kx2K (3840 x 2160) @30fps H265 DECODING
- 16x1080p@30fps H.265 decoding
Intelligent Video Analysis
- Integrated IVE 2.0
Video and Graphic Processing
- Video Interfaces
  One BT.1120 HD input port
- VO interfaces
  One HDMI 2.0 ultra-HD output interface, support output up to 3840 x 2160@60 fps
  One VGA HD output interface,support output up to 2560 x 1600@60 fps
  Two independent HD output channels (DHD0 and DHD1), output from any HD interface (HDMI, VGA, and BT.1120)
Ethernet Ports
Two gigabit Ethernet ports
Memory Interface
Two 32-bit DDR3/4 SDRAM interfaces
Maximum capacity of 3 GB

GPU
- Mali-T720 GPU
  Mali-T720則特別針對Android平台進行微調，而且是由Samsung Galaxy Note 3所採用的Mali GPU衍生而來，它屬於入門級Android裝置的解決方案
  ref:ARM發表16核心的Mali GPU
- OpenGL ES3.1

Linux 3.4-based SDK

NVR: 4x1080p NVR

Process Core
- ARM Cortex A9 dual core
Video Decoding Standards
- H.264 Baseline/Main/High profile 5.0
- MPEG/JPEG baseline
Video Encoding Standard
- H.264 Baseline/Main/High profile L4.2
- MPEG/JPEG baseline
Video Encoding/Decoding
- 5x1080p@30fps H.264 decoding
Intelligent Video Engine
Video and Graphic Processing
Ethernet Ports
- Two gigabit Ethernet ports
Memory Interfaces
- One 32-bit DDR3 SDRAM controller interface
  Maximum capacity of 2 GB
看一下HI3535手冊沒有Support VFPv3