Semiconductor product data processing system for pocket computer, PDA has functional blocks communicating with each other by exchanging messages through local area network for relieving processor and bus system

摘要

The system has a processor (110) to process data associated with a bus system and including access to a primary zone of an extended memory interface (EMI) (150) through the bus system. An EMI (160) is accessed through a local area network (140). Functional blocks (131-135,170) communicate with each other by exchanging messages through the network in order to relieve the processor and bus system. The functional blocks are a liquid crystal display (LCD) control unit (131), a memory buffer unit (132), a bridge circuit (133), 2D/3D graphic acceleration unit (134), Internet buffer (135) and a communication block (170). The communication block permits interfacing with a serial bus, an infrared link or Ethernet network.