Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1986-05-30
1988-07-19
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307243, 307466, 364716, H03K 19177, H03K 19092
Patent
active
047587474
ABSTRACT:
A programmable array logic device including a programmable logic array, at least one register pair, a multiplexer coupled to the register pair so that they can share a common I/O pin, and an observability buffer for controlling the multiplexer. A dual clock buffer is provided so that registers within the register pair can be clocked singly when in a preload mode or together when in a logic or verification mode. When in the logic mode, either the output of a buried state register or an output register is observed at the I/O pin under the control of a product term generated by the logic array. When in the preload mode the register to be preloaded is selected by an externally provided preload select signal. In the verification mode, which typically follows a programming mode, individually selected product terms within the logic array can be observed by clocking them into the register pairs.
REFERENCES:
patent: 4124899 (1978-11-01), Birkner et al.
patent: 4409683 (1983-10-01), Woodward
patent: 4412342 (1983-10-01), Khan et al.
patent: 4430584 (1984-02-01), Someshwar et al.
patent: 4475049 (1984-10-01), Smith et al.
patent: 4593390 (1986-06-01), Hildebrand et al.
patent: 4680487 (1987-07-01), Kobayashi
Wu, "Pin Sharing in a PLA Code", IBM T.D.B., vol. 20, No. 2, Jul. 1977, p. 672.
O'Hara, Jr., "PLA Multifunction Output Latches", IBM T.D.B., vol. 20, No. 12, May 1978, pp. 5205-5208.
Shankar Kapil
Young Michele
Advanced Micro Devices , Inc.
Hickman Paul L.
Hudspeth D. R.
King Patrick T.
Miller Stanley D.
LandOfFree
Programmable logic device with buried registers selectively mult does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable logic device with buried registers selectively mult, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable logic device with buried registers selectively mult will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-598967