General Description
AL700/701/710 is a 4 channel QUAD-screen video controller that can accept digital video input
sources, provides 2 analog output ports (not for AL701), 2 digital output ports, and memory direct
access mode allowing images to be uploaded onto a PC. AL700/701/710 not only supports 4
channel 8-bit ITU-R-656 4:2:2 interface inputs, dual 8/16-bit digital outputs for successive process
and dual analog (TV encoder embedded, not for AL701) video outputs for TV, Camcorder, VCR,
etc

FEATUREs
!  Accepts NTSC, PAL and SECAM video formats
!  Supports 4 independent 656/601 8-bit video inputs
!  Supports multiplexing function for 2 channels using one decoder
!  Provides 2 independent 656/601 8/16-bit digital outputs
!  Provides 2 independent S-video/Composite analog video outputs (no need external encoders,
not for AL701)
!  Picture location selectable
!  Supports PIP (Picture-In-Picture) function
!  Supports programmable picture overlay and layer priority
!  Displays picture at arbitrary channels of 1,2,3 and 4
!  Provides channel switching without rolling
!  Freeze individual channel
!  Provides video loss detection and motion detection
!  2X zoom with vertical and horizontal interpolation
!  Provides embedded OSD (On Screen Display) and supports external OSD function
!  Supports BMP image overlay and Non-fixed font display
!  Provides fading effects for OSD overlay
!  Supports various types of video decoder and 1Mx16 or 4Mx16 SDRAM
!  Supports registers programming via I2C serial or proprietary parallel interface
!  Supports uploading image data onto PC
!  Provides horizontal image mirroring
!  Available in 208-pin 28*28mm PQFP
!  Note: AL710 only supports Black & White video mode