Electrical computers and digital processing systems: processing – Processing architecture – Microprocessor or multichip or multimodule processor having...
Reexamination Certificate
2005-07-12
2005-07-12
Pan, Daniel H. (Department: 2183)
Electrical computers and digital processing systems: processing
Processing architecture
Microprocessor or multichip or multimodule processor having...
C712S036000, C712S037000, C712S230000, C711S169000, C711S208000, C711S209000, C713S401000
Reexamination Certificate
active
06918025
ABSTRACT:
A data processing device is used with peripheral devices having addressees and differing communication response periods. The data processing device includes a digital processor adapted for selecting different ones of the peripheral devices by asserting addresses of each selected peripheral device. Addressable programmable registers hold wait state values representative of distinct numbers of wait states corresponding to different address ranges. Circuitry responsive to an asserted address to the peripheral devices asserted by the digital processor generates the number of wait states represented by the value held in one of the addressable programmable registers corresponding to the one of the address ranges in which the asserted address occurs, thereby accommodating the differing communication response periods of the peripheral devices.
REFERENCES:
patent: 4008462 (1977-02-01), Kanda
patent: 4338661 (1982-07-01), Tredennick et al.
patent: 4514825 (1985-04-01), Nordling
patent: 4532589 (1985-07-01), Shintani et al.
patent: 4773002 (1988-09-01), Iwasaki et al.
patent: 4860192 (1989-08-01), Sachs et al.
patent: 6263419 (2001-07-01), Boutaud et al.
Alpert, David, “Powerful 32-Bit Micro Includes Memory Management,” Computer Design Oct. 1983, pp. 213-220.
Zilog Z80,000 CPU Preliminary Technical Manual, Sep. 1984.
Boutaud Frederic
Ehlig Peter N.
Bassuk Lawrence J.
Brady W. James
Pan Daniel H.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
LandOfFree
IC with wait state registers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with IC with wait state registers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IC with wait state registers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3369846