Microcomputer system - has switching stage to reduce power consumption of system peripherals to standby level when operating in reduced mode

摘要

A microcomputer system has a microprocessor module (5) with a CPU (2), internal RAM (10) and a buffer memory (4). All threee units are connected onto an internal bus (3). The module connects with an external bus using a tri-state buffer unit (4a). The external bus supports programme ROM (7), read-write memory (8), I/O units (9) and a stage (11) to reduce the system power consumption. When operating in the reduced mode, switching stages (11a,11b) are actuated to reduce the supplies to the ROm,dROM,RAM and I/O units to a standby level. ADVANTAGE - Has reduced power consumption.