Wide SCSI bus controller with buffered acknowledge signal

Details Wide SCSI bus controller with buffered acknowledge signal Wide SCSI bus controller with buffered acknowledge signal

1996-10-07

1998-05-12

Auve, Glenn A.

395281, G06F 1300

Patent

active

057519773

ABSTRACT:
SCSI controller circuitry for controlling devices on a wide SCSI bus that implement the wide SCSI bus standard according to SCSI-2 is implemented with improved circuitry for providing the wide SCSI bus acknowledge signal ACKB*. Specifically, a high speed analog buffer chip is provided that can sync and source over 55 milliamps, that has a propagation delay of 1.5 nanoseconds, and that follows its input with a high degree of accuracy. Using this circuitry, glitches are eliminated in devices with high lump capacitive loads and cross-talk on the wide SCSI bus.

REFERENCES:
patent: 4604689 (1986-08-01), Burger
patent: 5111080 (1992-05-01), Mizukami et al.
patent: 5233692 (1993-08-01), Gajjar et al.
patent: 5362991 (1994-11-01), Samela
patent: 5527996 (1996-06-01), Ham
IBM Technical Disclosure Bulletin, vol. 37 No. 10, Oct. 1994, pp. 617-618.
Data Sheet For Microlinear ML65244 Chip pp. 1, 3, 5, and 11-9 (Sep. 1994).
Small Computer System Interface-2 (SCSI-2) working draft revision 10L (Sep. 7, 1993).

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