Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output data buffering
Patent
1999-08-10
2000-11-28
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output data buffering
710 51, 710 52, 710 53, 370366, 370537, 370538, G06F 1300, H04J 322
Patent
active
061547972
ABSTRACT:
A plurality of transmitters are multiplexed to a hub through clocked serial links. Timing problems that may arise when switching between links are eliminated with a system including a group serial receiver for each link for performing serial to parallel conversion of data sent over the serial link, outputing a group clock signal based on the serial clock signal, outputing parallel data clocked by the group clock signal, and determining a data enable signal from the serial link. A select signal for determining the serial link being read by the hub selects the corresponding group clock, parallel data, and data enable. A load control clocks the selected parallel data into a first-in, first-out buffer using the selected group clock when the selected data enable is asserted. When the selected data enable is not asserted, the load control is held in reset and, hence, is insensitive to irregularities in the selected clock signal due to switching between links. Data is clocked from the buffer by a local clock.
REFERENCES:
patent: 4759014 (1988-07-01), Decker et al.
patent: 4853653 (1989-08-01), Maher
patent: 4855616 (1989-08-01), Wang et al.
patent: 4970405 (1990-11-01), Hagiwara
patent: 5045714 (1991-09-01), Park et al.
patent: 5231389 (1993-07-01), Yamauchi
patent: 5237573 (1993-08-01), Dhuey et al.
patent: 5390298 (1995-02-01), Kuszmaul et al.
patent: 5418407 (1995-05-01), Frenkil
patent: 5648964 (1997-07-01), Inagaki et al.
patent: 5680564 (1997-10-01), Divivier et al.
patent: 5734685 (1998-03-01), Bedell et al.
patent: 5751724 (1998-05-01), Elliott
patent: 5867543 (1999-02-01), Roberts et al.
patent: 5903616 (1999-05-01), Rangan et al.
patent: 6031786 (2000-02-01), Jang et al.
patent: 6034901 (2000-03-01), Toda
patent: 6035427 (2000-03-01), Kweon
patent: 6046936 (2000-04-01), Tusjikawa et al.
Burns William
Lucas Michael
Bailey Wayne P.
Cao Chun
Lee Thomas C.
Storage Technology Corporation
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