CPU on mobile phone

Source: Internet
Author: User

CPU on the smartphone can be divided into two camps: Texas Instruments (TI) and Intel. However, Intel focuses on PPC, while Texas Instruments use more CPU intelligently. Possession
In terms of efficiency, Ti occupies the vast majority of the smartphone market share. Reach SP is TI's loyal supporter. Nokia's N series and E series new smartphones also use TI's processor, while
Most intel CPUs appear on PPC. Currently, many of Alibaba Cloud's PPC have begun to adopt ti.
Omap850 platform, because although Intel's CPU performance is high, but it is relatively expensive, originally PPC is a large power consumption, coupled with the intel electric tiger, that point of the battery is definitely not enough.

However, TI's processor performance is not as high as Intel's, but it consumes less power than Intel's CPU and saves more power. Therefore, many PPC smartphones are slowly starting
The transition of the omap850 platform should not only consider the performance of the entire machine, but also the power consumption. On the other hand, many forums refer to Ti
Omap850 is a dual-core CPU. In fact, it only integrates the general-purpose processor with the GSM module. Generally speaking, it is a combination of ARM + DSP, while Intel's
The CPU needs to be separately used with separate communication modules. Therefore, the power consumption of the two chips will definitely be greater than that of a single chip.

Of course, the price is also a very important factor, although TI's CPU needs
It is more expensive than Intel's CPU, But If Intel's CPU adds a communication processing module, the cost will be higher than Ti's CPU. So TI's processor is in the smart phone field.
It has always been favored because the CPU price is relatively low and power-saving, while the performance is not much different from that of Intel, It is very cost-effective.

Because the vast majority
All SP instances use TI.
OMAP series Processors. Common OMPa series include three processors: omap730, 750, and 850. The omap850 is not only used on the SP, but also has 8 series of memory.
Column and part of the 9 series PPC are also used. The three CPUs omap730, 750, and 850 use the same manufacturing process. They are both 0.13 microns and have 289 pins.
The format is m-BGA, which is based on the arm926 architecture and supports low-voltage low voltage technology. The operating voltage can be adjusted between 1.1-v. However, in the RAM module
There are some minor differences. The omap730 supports SD memory, while the omap750 and 850 support high-speed DDR memory. Therefore, the overall performance has obvious advantages.
Compared with omap850, omap850 supports the edge band, that is, the 2.75g network. In addition to Hong Kong, China supports edge.
2G network, that is, the GPRS network. In addition, the omap850 can also directly support WiFi wireless networks. Because China requires that mobile phones do not provide WiFi functions, they are available on the market.
This is the reason why smartphones with WiFi in simplified Chinese versions cannot be seen. Even if the ROM in simplified Chinese is available, the WiFi function will be blocked.

Texas Instruments (TI)
Omap710: 515 and 535; Motorola MPX200.

It is part of the GPRS chipset tcs2500 launched by TI, which consists of a program processor arm925 and a GSM/GPRS communication chip. Where
The maximum operating frequency of arm925 is 132 MHz. It has a 16 KB level-1 cache and a kb high-speed buffer zone shared with the available memory space. However, the biggest pity is the GPRS
The wireless Internet access rate is only Class 8, not 10. It can be equipped with a screen of up to 65536 colors and can be equipped with infrared and Bluetooth modules.
Omap730: memory reaches 565, 575, 585

Low-Voltage Technology is also adopted, but the process is only 0.13 microns, and the working voltage can be dynamically adjusted between 1.1-V, so it also saves power.
Omap730 is part of the GPRS chipset tcs2600 launched by TI. It also consists of a program processor arm926 and a GSM/GPRS communication chip. Its
The operating frequency of arm926 in is increased to 200 MHz, with a 16 KB level-1 cache. The newly added Java hardware acceleration is another major aspect.
Omap733: Motorola MPX

The difference between omap733 and the well-received omap730 is not great.
Omap750: memory up to 566, 586

It is also composed of a program processor arm926 and an edge communication chip. The operating frequency of arm926 is increased to 200 MHz, with a 16 KB level-1 cache. And omap730
The same Java hardware acceleration as omap733 can greatly improve the processing performance of smartphones in streaming media and applications. Omap750 allows smart phone manufacturers to use it faster
DDR (double data rate) memory, while omap730 can only use normal SDRAM.
Omap850: memory up to 577 W, 586 W, 710, 830, 838

However, omap850 is part of tcs3500, a new edge chipset launched by TI, but the omap850 application processor is the same as omap750.
Arm926, with a 200 MHz operating frequency and a 16 KB level-1 cache. Provides
802.11b/G wireless protocol support allows mobile phones to directly access the Internet through WLAN.
Omap1510: Nokia 9300, 9500, 9300i

He is a member of TI's "high-performance" family that has the lowest position. It uses the latest Low-Voltage Low Voltage Technology, 0.13 micron process, operating voltage
It is 1.5 V, which is relatively expensive. Although the arm925 program processor in omap1510 can work at a maximum frequency of 168 MHz, Nokia only
9300, 9500, and 150 I CPUs are locked at MHz. Arm925 also has a 16 KB level-1 cache and a kb high-speed buffer shared with the available memory space.
Omap1611: Motorola mpx220

The maximum operating frequency of the program processor arm926 can reach 204 MHz, and it also has a 16 KB level-1 cache. However, TI has integrated the entire omap1611
A static register with a capacity of about 2 MB also improves the buffer and reading capabilities of the entire processor, which can make the mobile phone more perfect for image processing and streaming media playback.
Omap1710: Nokia 6630, 6681, E61, N70, N72, n73, N80, N90, and n91

Ti is the first processor with a processing capacity of only 0.09 microns. However, it still uses low-voltage technology. The power consumption in normal standby mode is only 10 Mah, which can be described as energy-saving and high-performance.
Hand. The program Processor Model in omap1710 is still arm926, but its maximum operating frequency can reach 220 MHz, and most Nokia s60 Smartphones also have
Lock the frequency to this standard. At the same time, the first-level cache of arm926 has been increased to 32 KB, which is twice the original one. omap1710 also supports IEEE
802.11a/B/g protocol, WLAN wireless Internet access has become a common practice.
Omap2420: Nokia n93

The program processor model is arm1136, and its maximum operating frequency can be 330 MHz. The main reason why Nokia chose such a high-frequency processor is their
N93 is equipped with a 3.2 million-pixel "Carl Zeiss" autofocus lens and supports 3X optical zoom. At the same time, it can also play qvga-resolution MP4 files in full screen mode, Supporting Wi-Fi wireless
Online (not available in mainland China only), allows you to record videos that are close to the quality of the DVD. This feature is very powerful. It manages 240-320 pixels of head shots and qvga (x) resolution screens


The size of PXA255 is 17 × 17 mm². It has 256 contacts and 32 KB data and instruction buffer respectively.
PXA26x: Shanda Mio 8390, reaching 696, 696i

Pxa261, pxa262, and pxa263. However, you must never think that they are differentiated by frequency. In fact, they can all work at 400 MHz, MHz, and
MHz. According to Intel official introduction, pxa261 has 16 MB strataflash, while pxa262 and pxa263 both have
32 MB. Strataflash is a unique technology of Intel, which can effectively improve the product throughput.
PXA27X: Lenovo et960, et980, xiaxin e850, reaching 900, Yutong Mio A700, reaching 818, 828 +, Mingji P50, etc.

Series Processors are Intel's latest and most powerful CPUs. There are three members in this family: PXA270, pxa271, and pxa272.
Intel's first batch of Embedded wireless
The central processor of MMX technology. Similar to PXA26x, PXA27X does not simply differentiate models based on the frequency. They can reach up to 624 MHz, and the lowest is
312 MHz. In terms of image processing, the quick capture technology exclusive to the PXA27X processor can capture 4 million pixels of static images. And wireless
Intel speedstep Power Manager allows you to adjust the operating frequency on your own.

32-bit Proteus CPU arm-9 52 MHz:

Representative mobile phones: Nokia 9210, 9210c, 9210i, and 9290;
32-bit Proteus CPU arm-9 104 MHz:

Representative mobile phones: Nokia 3600, 3620, 3650, 3660, 6600, 7650, N-Gage, N-gage qd;
32-bit Proteus CPU arm-9 123 MHz:

Representative mobile phones: Nokia 3230, 6260, 6670, and 7610;
32-bit Proteus CPU arm-9 150 MHz:

Representative mobile phones: Nokia 6620 and 7710

The company specializes in
Technology chip design and development companies, as intellectual property suppliers, do not directly engage in chip production, by transfer design license by the partner companies to produce distinctive chips, the world's major Semiconductor manufacturers from arm companies
Purchase the designed ARM microprocessor core, and add appropriate peripheral circuits according to their different application fields to form their own arm
The microprocessor chip entered the market. At present, dozens of semiconductor companies all over the world use arm's authorization.
The technology is supported by more third-party tools, manufacturing, and software, and the cost of the entire system is reduced, making it easier for consumers to access the market and more competitive.

Currently, there are five product series: ARM7, arm9e, arm10, and securcore.
1. ARM7 Series

Low-Power 32-bit cores are optimized for consumption applications that are price-sensitive and power-sensitive. They include:
Embedded ICE-RT logic;
· Low Power Consumption;
· The Three-section pipeline and the Von noriman structure provide 0.9 MIPS/MHz.

2. securcore sc100
Designed specifically for the security market, it features specific anti-tampering and anti-engineering features. It also provides flexible protection units to ensure the security of operating system and application data.

3. arm9-series

High-performance and low-power advanced hardware and macro unit:
· 5 pipelines;
· The Harvard structure provides 1.1 MIPS/MHz.
ARM920T and arm922t have built-in full-performance MMU, command and data cache, and high-speed AMBA bus interfaces. The On-Chip Bus of AMBA is an open standard and has become a de facto standard for SOC construction and IP database development. AMBA's advanced high-performance bus (AHB) interface is now supported by all new arm cores and provides a comprehensive design system.
Arm940t built-in commands and data cache, protection unit and high-speed AMBA bus interface.

4. arm9e Series

It can be integrated with DSP expansion and tightly coupled memory (TCM) interfaces to enable memory to run at full processor speed and can be directly connected to the kernel.
ARM966E-S for silicon wafer size important, and no requirements for the cache real-time embedded application, can be configured with TCM size: 0, 4 K, 8 K, 16 K, up to 64 m.
The ARM946E-S has built-in integrated protection units to provide a cache core solution for real-time embedded operating systems.
ARM926ET-S with jazelle extended, separated command and Data High Speed AHB interface and full performance MMU.
Vfp9 vector floating point can be integrated with coprocessor to further improve arm9e processor performance and provide hardware support for floating point operations.

5. arm10 Series

Hardware macro unit:
· 64-bit AHB command and data interface;
· Six pipelines;
· 1. 25 MIPS/MHz;
· The performance is improved by 50% compared with the same ARM9.

Two new and advanced energy-saving methods achieve exceptionally low power consumption. The vfp10 coprocessor provides a high-performance floating point solution based on the arm10 device.

A design mode of Reduced Instruction Sets and computer CPU. It is short for hierarchical CED instruction set computing. In the early days, this CPU instruction set was characterized by a small number of commands, and each command was characterized by a standard character length, short execution time, and CPU implementation details that were visible to machine-level programs.

Sony Ericsson's new generation of smartphones based on uiq3.x all adopt the NXP pnx4008 SOC solution.
Many people are interested in this chip. Due to limited information, we will briefly list the parameters in the information on the NXP Website:

1. the CPU is based on the ARM926-EJ core, clock speed is 208 MHz, integrated 32 K Instruction Cache and 32 K data cache, integrated memory controller;

2. display subsystem: integrates LCD Drive, JPEG decoder, video codecs, 3D acceleration core, and camera interfaces.

(1) LCD driver. The maximum resolution is qvga (320x240), the maximum color depth is 18bit (0.26 million colors), and the maximum fl rate is 60Hz. Three indicators can reach the maximum value at the same time.
(2) JPEG decoder, supporting JPEG file Decoding with a maximum of 4 M pixels;
(3) Video codecs: supports encoding and decoding of MPEG4/h263 video formats with a maximum of 30 FPS (352x288;
(4) 3D acceleration core, a 3D core designed by powervr, supports OpenGL es1.0 API, clock speed of 104 MHz (half of CPU core clock speed), pixel filling rate of 0.15 billion per second, the polygon generation rate is 1.25 million per second;
(5) camera interface, supporting a camera module with a maximum of 4 M pixels.

3. The audio subsystem is a full-featured audio DSP that can complete decoding of various audio signals and ADC/DAC independently.

4. The security subsystem supports various mainstream encryption algorithms.

5. manufacturing process, 90nm CMOS.

It can be seen that although the CPU speed is not remarkable, pnx4008 provides a Soc solution with high application performance at a low cost by integrating a powerful video/audio subsystem, a Sybian system with less resource dependency is more than enough, and the power consumption is smaller than that of independent systems.

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