Revision as of 00:14, 6 September 2017

Template:mpu K3V1 is a 32-bit performance ARM microprocessor introduced by HiSilicon in 2008. This chip incorporates a single ARM9 core with Jazelle support operating at 460 MHz (although later models might have supported higher frequency). This chip supports 32-bit or 16-bit DDR memory.

Cache

Main article: ARM9 § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 32 KiB 32,768 B 0.0313 MiB L1I$ 16 KiB 16,384 B 0.0156 MiB 1x16 KiB 4-way set associative   L1D$ 16 KiB 16,384 B 0.0156 MiB 1x16 KiB 4-way set associative

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR Controllers 1 Channels 1 Width 16 bit, 32 bit

Expansions

• 4x high-speed UART interfaces
• 2x SPI
• 2x I2C
• USB 2.0 On-The-Go (HS OTG) PHY
• USB 1.1
• 2x MMC/SD/SDIO interface
• 14x GPIOs
• 8 Timers

Graphics

The K3V1 integrated graphics engine, although the exact specs are not available. This GPU is most likely a licensed Vivante core.

• Support QVGA, WQVGA, VGA display resolutions
• Hardware-acceleration video
  • Decode: MPEG4, H.263, H.264, and VC-1
    • Rate QCIF/CIF/QVGA/VGA/D1, frame rate up to 30fps
  • Encode: MPEG4 and H.263 video encoding
    • QCIF/CIF/QVGA/VGA, frame rate up to 30fps
• 200 KiB Frame Buffer

Camera

• Support 30 million pixel camera, up to 30fps
• Supports up to 8 megapixel CMOS Sensor image input

Audio

• Built-in high-performance audio CODEC
  • Sampling frequency support 44.1kHz and 48kHz
  • support for sound playback and recording
• High quality stereo playback DAC and 1 channel Voice DAC, 2 channels
  • ADC, CODEC support any audio mixing, independent of the amplifier Output gain control

Documents

• K3V1 Product Brief