Microprocessor
US5070473A · kind A · utility
44Cited by
4References
32Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 24, 1987 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Jul 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4213
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wait signal formed by a program wait circuit incorporated in a microprocessor is transmitted to outside circuitry, such as a slave microprocessor or a direct memory access control device. Thereby an outside device assumes the functions of bus master which is incorporated into a wait operation for access to a memory unit. With such a construction, a microcomputer system comprising a plurality of devices to be made into a bus mask can be simplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.