Mars Semiconductor Corporation
Version 1.0
MR6720E
1 Ch. MPEG4 DVR controller with SD Card
Mars Semiconductor Corporation
3FC5, No.1, Li-Hsin RD. 1, Science Park, Hsin-Chu, Taiwan, R.O.C
TEL: 886-3-5775799, FAX: 886-3-5631501
0/19
• 27MHz X’TAL for system and 32768Hz X’TAL for RTC
• Support 32-bit/16-bit SDRAM and DDR memory bus
¾ MPEG-4 compression engine
• Full compliance with ISO/IEC 14496-2 video simple profile level L0-L3
• Typical resolution of QCIF(160x120), CIF(352x288), VGA(640x480), D1(720x480)
SVGA(800x600).
• Real-time Encoder typically at CIF 30 fps @43MHz, VGA or D1 30 fps@64MHz,
SVGA 20 fps@64MHz.
• Motion Estimation
• +/-16 Range for the Motion Vectors(Search Window).
• Integer and Half Pixel Accuracy.
• Unrestricted Motion Vectors.
• Up to 4 Motion vectors per macro-block.
• DCT/ IDCT compatible with IEEE Std 1180-1990.
• Quantization/Inverse-Quantization Type 2 (H.263) .
• AC/DC Prediction.
• Rate Control including variable and constant bit rate output.
• Programmable I-VOP refresh, I-MB refresh.
• Error Resilience Tools.
• Re-synchronization makers.
¾ Motion Detection/Auto Focus
• To drive a motor driver focusing the object precisely
• To set motion block area and adjust sensitivity and velocity by intelligence
¾ Sensor/Video Interface
• Support CMOS/CCD and CCIR656 input interface
• Support resolution up to 3M pixels
• Provide master and slave modes of sensor’s timing
¾ JPEG engine
• Compliant with the baseline standard defined by ISO/IEC International Standard 10918-1
• YUV422 baseline sequential mode coding/decoding.
• Support EXIF2.2 file format
• Support DCF/DPOF file system
¾ Scalar
• High performance 2-D scaling filter
• Support various scaling factor