GM8287芯片的性能规格描述：

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GM8287芯片的性能规格描述：

Embedded Processor              
 ARM-based 32-bit RISC
 32KB instruction cache and 32KB data cache

Clock/PLL
 12MHz main clock input
 12.288MHz clock input (Optional)
 Programmable frequency core PLL for main clock and audio main clocks
 Programmable clock output x1 for video decoder
 Programmable clock output x1 for Ethernet PHY
 Frequency change control

Memory Interface        支持DDR3芯片，跑1.3G
 32-bit DDR3 SDRAM interface up to DDR3-1333
 Supports NAND/SPI NOR Flash boot
 Supports NAND 64-bit ECC correction capability for 512-byte or 1K-byte sector

H.264 Codec         
 Supports high-profile encoding D1 360 fps or 1080p 60 fps
 Supports high-profile decoding D1 360 fps or 1080p 60 fps
 Supports high-profile encoding D1 300 fps + decoding D1 240 fps

MPEG4 Codec
 Compliant with MPEG4 simple profile L0 ~ L3 standards
 Supports encoding up to D1 60 fps
 Supports decoding up to D1 60 fps

JPEG Codec
 Compliant with JPEG baseline standard
 Supports image size up to 64k× 64k
 Supports codec performance up to 120 Mpixel/sec

3D De-interlace and De-noise
 Supports 3D de-interlace up to 1080i
 Supports 60i to 30p and 60i to 60p 3D de-interlace functions

2D Graphics Accelerator Engine
 Supports graphics formats of RGB-555, 565, 888, and ARGB-8888

Video Scalar
 Maximum video input resolution of 4096x4096
 Supports linear scaling down/up function
 Supports ARGB888 scaling

Video Capture          输入视频接口
 BT.656 input x4 (Up to 148.5MHz)
 BT.1120 input x2 (Up to 148.5MHz)
 Supports 54MHz/108MHz and 72MHz/144MHz byte/frame interleave modes
 Supports 2-channel 1080p 60 fps BT1120 input or 4-channel 1080p 30 fps BT656 input
 Supports multiplexer function up to D1/960H 16 channels
 Supports D1/960H/HD/Full HD input multiple channel combination

Display Controller         
 Supports 1920x1080/60p, 1280x720/60p, 1280x1024/60p, 480i , and 576i display resolutions
 Supports two independent display controllers

Display interface
 VGA x1
 Composite x1
 HDMI 1.3a x1

I2S Controller
 Supports I2S up to three (One pin-mux pins )
 Serial data format ranging from 4 bits to 128 bits in length
 Provides 32-word transmit FIFO and 32-word receive FIFO

Giga Ethernet Controller
 Supports GMAC interface which can support 10Mbps/100Mbps RMII and 1000Mbps RGMII
 Supports network acceleration TOE engine (TCP/UDP/IP offload engine)

High-speed I/O interface          
 SATA 3Gb/s x2
 USB OTG 2.0 x2

Secure Digital Card (SDC) Controller
 Compliant with SD host controller standard specification, version 3.0
 Compliant with SD physical layer specification, version 3.0





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