NXP Semiconductors SAA7140B
The SAA7140B is a pure 3.3 V design and therefore has only 3.3 V supply pins. With respect to functions and programming, both devices are identical. The devices incorporate additional functions such as control of brightness, saturation, contrast, chroma key generation, YUV-to-RGB conversion, compensation of gamma precorrection, dithering and choice of several output formats.FEATURES
GENERAL DESCRIPTION
ORDERING INFORMATION BLOCK DIAGRAM PINNING (SAA7140A) PINNING (SAA7140B) FUNCTIONALDESCRIPTION
Data format/reformatter and reference signal generation Data formats and reference signals of the DMSD port Data formats and reference signals of the expansion port Acquisition control BCS control Scaling unit Horizontal prescaling Vertical scaler Horizontal variable phase scaling CSM (Colour Space Matrix), dither and gamma correction Output formatter and output FIFO register Data formats and reference signals of the VRAM port Data transfer modes Expansion port modes VRAM port modes Data burst transfer mode (FIFO Mode) Continuous data transfer mode (transparent mode) I2C-bus controlled pseudo sleep mode I2C-BUS PROTOCOL I2C-bus format I2C-bus bitmapDESCRIPTION
of the I2C-bus bits Initial settings for the expansion and DMSD port; Subaddress 00H Initial settings for the VRAM port; subaddress 01H Port I/O control; subaddress 21H Register set A (02H to 1FH) and B (2...