PDF TW6816 Data sheet ( Hoja de datos )

Número de pieza	TW6816
Descripción	4-CH Audio/Video Decoders
Fabricantes	Intersil
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No Preview Available ! Techwell NOT RECOMMENDED FOR NEW DESIGNS Contact our Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc 4-CH Audio/Video Decoders with 66MHz PCI Interface TW6816 Features Video Decoder NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM support with automatic format detection Software selectable analog inputs allows any of 4 CVBS per one video ADC Four 10-bit ADCs and analog clamping circuit for CVBS input. Fully programmable static gain or automatic gain control for the Y channel Programmable white peak control for CVBS channel 4-H adaptive comb filter Y/C separation PAL delay line for color phase error correction Image enhancement with 2D peaking and CTI. Digital sub-carrier PLL for accurate color decoding Digital Horizontal PLL for synchronization processing and pixel sampling Advanced synchronization processing and sync detection for handling non-standard and weak signal Programmable hue, brightness, saturation, contrast, sharpness, Gamma control, and noise suppression Automatic color control and color killer Detection of level of copy protection according to Macrovision standard Programmable output cropping Video Scaler High quality horizontal filtered scaling with arbitrary scale down ratio Phase accuracy better than 1/32 pixel Selectable anti-alias filter Audio Capture Four 10-bit ADC for Analog Sound digitizing Programmable Sampling rate PCI 66MHz/33MHz PCI with M66EN interface PCI Rev. 2.2-3.0 compliant ACPI support Integrated Video/Audio DMA controller Support both selectable one real-time video and 4x switching non real-time video Miscellaneous Programmable RGB and YCbCr color space conversion 400Kbps Two-wire MPU serial bus Master interface Power-down mode Single 27MHz crystal for all standards 5V tolerant I/O 1.8 V power supply 100-pin LQFP package FN7753.0 July 7, 2011 1 1-888-INTERSIL or 1-888-468-3774 \| Copyright Intersil Americas Inc. 2011. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. 1 page TW6816 0x000 – VDMAC[3:0] .........................................................68 0x004 – VDMAP_SA..........................................................68 0x008 – VDMAP_EXE .......................................................68 0x00C – VDMAP_PP.........................................................68 0x01C – INTSTAT..............................................................69 0x01C – INTSTAT (cont.) ..................................................70 0x020 – INTMASK .............................................................70 0x02C – RGB_PAT............................................................71 0x040 – Video Capture Control .........................................72 0x04C – VIDEO FRAME DROP CONTROL ....................72 0x058 – DEVICE ID ...........................................................73 0x058 – SUBSYSTEM ID ..................................................73 0x078 – M66EN..................................................................73 0x204 – Decoder Status Register 1 (STATUS1) ..............74 0x208 – Input Format (INFORM).......................................75 0x210 – GAMMA and HSYNC Delay Control...................75 0x218 – Analog Control Register (ACNTL) .......................76 0x21C – Cropping Register High (CROP_HI)...................76 0x220 – Vertical Delay Register Low (VDELAY_LO) .......76 0x224 – Vertical Active Register Low (VACTIVE_LO) .....77 0x228 – Horizontal Delay Register Low (HDELAY_LO)...77 0x22C – Horizontal Active Register Low (HACTIVE_LO) 77 0x230 – Control Register I (CNTRL1) ...............................78 0x234 – Vertical Scaling Register, Low (VSCALE_LO)....78 0x238 – Scaling Register High (SCALE_HI).....................78 0x23C – Horizontal Scaling Register Low (HSCALE_LO)78 0x240 – BRIGHTNESS Control Register (BRIGHT) ........79 0x244 – CONTRAST Control Register (CONTRAST) .....79 0x248 – SHARPNESS Control Register I (SHARPNESS)79 0x24C – Chroma (U) Gain Register (SAT_U)...................79 0x250 – Chroma (V) Gain Register (SAT_V)....................80 0x254 – Hue Control Register (HUE) ................................80 0x25C – Vertical Sharpness (VSHARP) ...........................80 0x260 – Coring Control Register (CORING).....................81 0x268 – Analog Control II...................................................81 0x270 – Standard Selection (SDT)....................................82 0x274 – Standard Recognition (SDTR).............................83 0x278 – NT50.....................................................................83 0x280 – Clamping Gain (CLMPG).....................................83 0x284 – Individual AGC Gain (IAGC)................................84 0x288 – AGC Gain (AGCGAIN) ........................................84 0x28C – White Peak Threshold (PEAKWT)......................84 0x290– Clamp level (CLMPL)............................................84 0x294– Sync Amplitude (SYNCT) .....................................84 0x298 – Sync Miss Count Register (MISSCNT)...............85 0x29C – Clamp Position Register (PCLAMP)...................85 0x2A0 – Vertical Control I (VCNTL1).................................85 0x2A4 – Vertical Control II (VCNTL2)................................85 0x2A8 – Color Killer Level Control (CKILL) .......................86 0x2AC – Comb Filter Control (COMB) ..............................86 0x2B0 – Luma Delay and H Filter Control (LDLY)............86 0x2B4 – Miscellaneous Control I (MISC1) ........................87 0x2B8 – LOOP Control Register (LOOP)..........................87 0x2BC – Miscellaneous Control II (MISC2).......................87 0x2C0 – Macrovision Detection (MVSN)...........................88 0x2C4 – Decoder Chip STATUS II (STATUS2) ..............89 0x2C8 – H Monitor (HFREF) .............................................89 0x2CC – CLAMP MODE (CLMD) .....................................89 0x2D0 – ID Detection Control (IDCNTL) ...........................90 0x2D4 – Clamp Control I (CLCNTL1)................................90 0x3DC – Field2 Cropping High (F2CROP_HI) .................90 0x3E0 – Field2 Vertical Delay Low (F2VDELAY_LO) ......91 0x3E4 – Field2 Vertical Active Low (F2VACTIVE_LO) ....91 0x3E8 – Field2 Horizontal Delay Low (F2HDELAY_LO)..91 0x3EC – Field2 Horizontal Active Low (F2HACTIVE_LO)91 0x3F0 – Field2 Control (F2CNT) .......................................92 0x3F4 – Field2 Vertical Scaling Low (F2VSCALE_LO)....92 0x3F8 – Field2 Scaling High (F2SCALE_HI) ...................92 0x3FC – Field2 Horizontal Scaling Low (F2HSCALE_LO)92 5 PCI Configuration Space Registers for Audio ...................... 93 0x00 – Vendor ID and Device ID....................................... 93 0x04 – Command and Status Register............................. 93 0x08 – Revision ID and Class Code ................................. 94 0x0C – Cache Line Size.................................................... 94 0x0D – Latency Timer ....................................................... 94 0x0E – Header Type.......................................................... 94 0x10 – Base Address 0 ..................................................... 94 0x2C – Subsystem ID and Subsystem Vendor ID ........... 95 0x34 – Capabilities Pointer................................................ 95 0x3C – Interrupt Line, Interrupt Pin, Min_Gnt, Max_Lat... 95 0x44 – Power Management Capabilities .......................... 96 0x48 – Power Management Control/Status...................... 96 PCI Memory Space Registers for Audio............................... 97 Function 4 Audio 1 Memory Register Summary .............. 97 Function 4 Audio 1 Memory Register Description ..........100 0x000 – ADMAC..............................................................100 0x004– ADMAP_SA ........................................................100 0x008 – ADMAP_EXE.....................................................100 0x00C – ADMAP_PP ......................................................100 0x010 – Audio Control1 (ACTL1)....................................101 0x014 – AUDIO PACKET (APACKET)...........................101 0x018 – Audio Control2 (ACTL2)....................................102 0x01C – Audio Interrupt Status (AINTSTAT)..................102 0x020 – Audio Interrupt Mask (AINTMASK)...................103 0x024 – AIGAIN...............................................................103 0x024 – Audio ADC Digital Input Offset control..............103 0x02C – Adjusted Audio ADC data value.......................103 0x030 – Audio Reset (ARSTN) .......................................104 0x034 – PALKREF6816 ..................................................104 0x03C – VACLKREF6816...............................................104 0x040 – Audio Clock Selection........................................104 0x044 – Video Decoder Status(VIN4 input video)..........105 0x044 – Video Decoder Status(VIN3 input video)..........106 0x044 –Video Decoder Status(VIN2 input video)...........107 0x044 – Video Decoder Status(VIN1 input video)..........108 0x04C – Audio Detection Status .....................................108 0x058 – DEVICE ID.........................................................109 0x05C – SUBSYSTEM....................................................109 0x060 – ADMAERRPASS...............................................109 0x064 – ADROPVALUE..................................................110 0x068 – Audio Clock Increment (ACKI)..........................110 0x06C – Audio Clock Number (ACKN)...........................110 0x070 – Audio ACKG Control .........................................111 0x074 – Audio Detection .................................................111 0x078 – Audio Detection Threshold................................112 0x07C – Audio ADC control ............................................112 Function 5/6/7 Audio 2/3/4 Memory Register Summary 113 Function 5/6/7 Audio 2/3/4 Memory Register Description116 0x000 – ADMAC..............................................................116 0x004– ADMAP_SA ........................................................116 0x008 – ADMAP_EXE.....................................................116 0x00C – ADMAP_PP ......................................................116 0x010 – Audio Control1 (ACTL1)....................................117 0x014 – AUDIO PACKET (APACKET)...........................117 0x018 – Audio Control2 (ACTL2)....................................117 0x01C – Audio Interrupt Status (AINTSTAT)..................118 0x020 – Audio Interrupt Mask (AINTMASK)...................118 0x024 – AIGAIN...............................................................119 0x024 – Audio ADC Digital Input Offset control..............119 0x02C – Adjusted Audio ADC data value.......................119 0x030 – Audio Reset (ARSTN) .......................................119 0x044 – Video Decoder Status (VIN4 Input Video)........120 0x044 – Video Decoder Status (VIN3 Input Video)........121 0x044 –Video Decoder Status (VIN2 Input Video).........122 0x044 – Video Decoder Status (VIN1 Input Video)........123 0x04C – Audio Detection Status .....................................123 0x058 – DEVICE ID.........................................................124 0x05C – SUBSYSTEM....................................................124 5 Page TW6816 Format NTSC-M NTSC-Japan (1) PAL-B, G, N PAL-D PAL-H PAL-I PAL-M PAL-CN SECAM PAL-60 NTSC (4.43) Table 1. Video Input Formats Supported by TW6816 Lines Fields Fsc Country 525 60 3.579545 MHz U.S., many others 525 60 3.579545 MHz Japan 625 50 4.433619 MHz Many 625 50 4.433619 MHz China 625 50 4.433619 MHz Belgium 625 50 4.433619 MHz Great Britain, others 525 60 3.575612 MHz Brazil 625 50 3.582056 MHz Argentina 625 50 4.406MHz 4.250MHz France, Eastern Europe, Middle East, Russia 525 60 4.433619 MHz China 525 60 4.433619 MHz Transcoding Notes: (1). NTSC-Japan has 0 IRE setup. Component Processing Luminance Processing The TW6816 adjusts brightness by adding a programmable value (in register BRIGHTNESS) to the Y signal. It adjusts the picture contrast by changing the gain (in register CONTRAST) of the Y signal. The TW6816 video decoder also performs a coring function. It can force all values below a certain level, programmed in the Coring Control Register, to zero. This is useful because human eyes are sensitive to variations in nearly black images. Changing levels near black to true black, can make the image appears clearer. Sharpness The TW6816 also provides a sharpness control function through control registers. It provides the control in 16 steps up to +12db. The center frequency of the enhancement curve is around 3.5Mhz. It also provides a high frequency coring function to minimize the amplification of high frequency noise. The coring level is adjustable through the Coring Control register. The same function can also be used to soften the images. This can be used to provide noise reduction on noisy signal. To further enhance the image, a programmable vertical peaking function is provided for up to +6db of enhancement. A programmable coring level can be adjusted to minimize the noise enhancement. 11 11 Page

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