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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TNETV1644ZDU6 데이터시트(PDF) 215 Page - Texas Instruments |
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TNETV1644ZDU6 데이터시트(HTML) 215 Page - Texas Instruments |
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215 / 306 page  6.10.1.3 Resizer TMS320DM6437 Digital Media Processor www.ti.com SPRS345D – NOVEMBER 2006 – REVISED JUNE 2008 The resizer module can accept input image/video data from either the preview engine or DDR2. The output of the resizer module is sent to DDR2. The following features are supported by the resizer module. • An output width up to 1280 horizontal pixels. • Input from external DDR2. • Up to 4x upsampling (digital zoom). • Bi-cubic interpolation (4-tap horizontal, 4-tap vertical) can be implemented with the programmable filter coefficients. • 8 phases of filter coefficients. • Optional bi-linear interpolation for the chrominance components. • Up to 1/4x downsampling • 4-tap horizontal and 4-tap vertical filter coefficients (with 8-phases) for 1x to 1/2x downsampling • 1/2x to 1/4x downsampling, for 7-tap mode with 4-phases. • Resizing either YUV 4:2:2 packed data (16-bits) or color separate data (8-bit data within DDR) that is contiguous. • Separate/independent resizing factor for the horizontal and vertical directions. • Upsampling and downsampling ratios that are available are: 256/N, with N ranging from 64 to 1024. • Programmable luminance sharpening after the horizontal resizing and before the vertical resizing step. The Resizer register memory mapping is shown in Table 6-32. Table 6-32. Resizer Register Descriptions HEX ADDRESS RANGE REGISTER ACRONYM DESCRIPTION 0x01C7 0C00 PID Peripheral Revision and Class Information 0x01C7 0C04 PCR Peripheral Control Register 0x01C7 0C08 RSZ_CNT Resizer Control Bits 0x01C7 0C0C OUT_SIZE Output Width and Height After Resizing 0x01C7 0C10 IN_START Input Starting Information 0x01C7 0C14 IN_SIZE Input Width and Height Before Resizing 0x01C7 0C18 SDR_INADD Input SDRAM Address 0x01C7 0C1C SDR_INOFF SDRAM Offset for the Input Line 0x01C7 0C20 SDR_OUTADD Output SDRAM Address 0x01C7 0C24 SDR_OUTOFF SDRAM Offset for the Output Line 0x01C7 0C28 HFILT10 Horizontal Filter Coefficients 1 and 0 0x01C7 0C2C HFILT32 Horizontal Filter Coefficients 3 and 2 0x01C7 0C30 HFILT54 Horizontal Filter Coefficients 5 and 4 0x01C7 0C34 HFILT76 Horizontal Filter Coefficients 7 and 6 0x01C7 0C38 HFILT98 Horizontal Filter Coefficients 9 and 8 0x01C7 0C3C HFILT1110 Horizontal Filter Coefficients 11 and 10 0x01C7 0C40 HFILT1312 Horizontal Filter Coefficients 13 and 12 0x01C7 0C44 HFILT1514 Horizontal Filter Coefficients 15 and 14 0x01C7 0C48 HFILT1716 Horizontal Filter Coefficients 17 and 16 0x01C7 0C4C HFILT1918 Horizontal Filter Coefficients 19 and 18 0x01C7 0C50 HFILT2120 Horizontal Filter Coefficients 21 and 20 0x01C7 0C54 HFILT2322 Horizontal Filter Coefficients 23 and 22 0x01C7 0C58 HFILT2524 Horizontal Filter Coefficients 25 and 24 0x01C7 0C5C HFILT2726 Horizontal Filter Coefficients 27 and 26 0x01C7 0C60 HFILT2928 Horizontal Filter Coefficients 29 and 28 Submit Documentation Feedback Peripheral Information and Electrical Specifications 215 |
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