Circuitry for automatically entering and terminating an initialization mode in a data processing system in response to a control signal
US5263168A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Jun 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0638
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system (10), comprised of a central processing unit (14) and a memory system (16), has an efficient initialization operation. The memory system (16) provides a bus interface unit (20) to automatically determine whether the system (10) should execute an initialization operation or function in a normal mode of operation. The memory system (16) begins execution of the initialization operation of the system (10) in response to both a logic value of a reset signal and a value of an address transferred by an address bus. The memory system (16) automatically terminates execution of the initialization operation in response to the value of the address transferred by the address bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.