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Welcome to our Website. If you continue to browse and use this Website, you are agreeing to comply with and be bound by the following terms and conditions of use, which together with our privacy policy govern Generalplus Technology Inc.’s relationship with you in relation to this Website. If you disagree with any part of these terms and conditions, please do not use our website.
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GPM4 equips a strong ARM Cortex-M4F, a high performance embedded core processor with DSP instructions developed to address digital signal control markets that demand an efficient, easy-to-use blend of control and signal processing capabilities. The turbo-boost operating speed up to 200MHz plus makes GPM4 stand out from the crowd in its segment.
128/256
Fast and Faster
GPM4, along with power of Cortex-M4F, is embedded a 128KB SRAM to boost the data access speed instantly and a 256Mb DDR SDRAM (Double Data Rate SDRAM) to transfer large amount of data, especially image and video, nearly twice faster than the traditional SDRAM in speed.
H.264
High Definition, High Standard
GPM4 features a H.264 baseline profile CODEC with a maximum of 1080p/30fps for real-time video record and playback. H.264 (or MPEG-4) represents the standard of full high definition digital video. It compresses a digital video file to a size that is only half of DVD standard to deliver the same video quality. It's been commonly employed in many of devices we use today, from a cellular phone to a full high-definition blu-ray DVD player.
1080p
Capture More Details
GPM4 is designed to deliver satisfied video quality with a full high-definition 1080p capability. Thanks to the innovation in full high-definition technology, it captures clearer and sharper images while recording; that's twice of details than a standard definition. Its specifications come with the followings:
ISO/IEC 10918-1 baseline JPEG.
High-speed decoding and encoding, up to 64M pixels.
Hardware Motion JPEG decoding and encoding (up to 1080p@30fps) for real-time video record and playback.
1080p HDMI output with VGA or 720p to 1080p up-scaling engine.
5MEGA-pixel
5M RAW SENSOR ISP
A 5M-pixel Image Signal Processing (ISP) unit has been employed to GPM4 to perform functions such as demosaicing, focusing, exposuring, white-balance-adjustment, filting, noise reduction, and image correction, etc. It employs the histogram statistics for auto brightness and auto contrast.
MIPI
Mobile Industry Processor Interface
GPM4 is compliant with the MIPI standard, having one set of two-lane or two sets of 1-lane MIPI input and supporting video-in and CMOS sensor interface, and CCIR601/CCIR656 standard.
FACE
Face Detection
Face Detection is a type of technology widely used in today's vision computing and engineering. GPM4 comes with a face detection engine to determine the existence, location, and size of a human face, but ignores others in a scene. GPM4's face detection is programmable and expandable to further detect hands and eyes, and supports a 320 x 240 detection, YUV422 and Y-only source format, and image rotation angle in degrees of 0, 90, 180, and 270.
TFT
Each Pixel Matters
GPM4 is designed to support a TFT LCD display in order to highlight its excellence in display. TFT or called active-matrix technology performs a better resolution and color depth over other display technology to deliver crisp, sharper, and clearer image. Technically, GPM4 supports the following TFT's interface specification:
Scalar engine inside with programmable up-scaling and down-scaling factor.
PPU
Picture Processing Unit
GPM4 outfits a high-performance Picture Processing Unit (PPU) with a QVGA/VGA/D1 virtual 3D engine to accelerate graphical processing speed. Up to four text layers with 1024 sprites and 4096 extended sprites are also available as well as a maximum of 4096 palette index colors capability. With this outstanding processing unit, majority of special graphical effects can be produced the way it is expected including flipping, blending, rotation, zooming, fading, and mosaic.
Peripheral
Extendable for all kinds of possibility
GPM4 is developed to equip versatile peripherals to handle the sophistication and diversity of applications. What we list here is only part of them. To find out more about what GPM4 can do, please obtain a copy of its data sheet from the following link.
Universal Serial Bus (USB) 2.0 high/full speed compliance device and USB OHCI/EHCE host controller with built-in transceiver.
Eight 32-bit timers/counters with PWM output capability.
Eight channels quadrature decoder.
2 of SD 2.0/MMC interfaces.
3 of SPI (master/slave) interface, @ max. 24Mbps.
2 of UART or IrDA interface + 3 of I2C controller
4 of I2S input with 24-bit resolution @ max. 192KHz.
72 Programmable I/O ports
16-bit stereo DAC (2-channel) for audio playback + 16-bit stereo ADC for audio recording.
12-bit SAR ADC + MIC with digital AGC (auto gain control)
