Abstract: A reconfigurable state machine is provided. The state machine includes a current state register, for storing a current state, and at least one programmable state entry per state of the state machine. Each programmable entry includes a plurality of external signal inputs, a current state tag, at least one next state condition, and a respective next state output. A next state match circuit compares the current state with the current state tag and compares each of the next state conditions with at least one of the external signal inputs to produce a next state match output.

Abstract: An improved audio-visual circuit is provided that includes a transport packet parsing circuit for receiving a transport data packet stream, a CPU circuit for initializing said integrated circuit and for processing portions of said data packet stream, a ROM circuit for storing data, a RAM circuit for storing data, an audio decoder circuit for decoding audio portions of said data packet stream, a video decoder circuit for decoding video portions of said data packet stream, an NTSC/PAL encoding circuit for encoding video portions of said data packet stream, an OSD coprocessor circuit for processing OSD portions of said data packets, a traffic controller circuit moving portions of said data packet stream between portions of said integrated circuit, an extension bus interface circuit, a P1394 interface circuit, a communication coprocessors circuit, an address bus connected to said circuits, and a data bus connected to said circuits.

Abstract: An on-screen display system in which a CPU generates windows in a working memory space also provides for real time calculation of window addresses in the working memory space. This can eliminate the need for a separate frame buffer memory.