Personal computer system having storage controller with memory w

Details Personal computer system having storage controller with memory w Personal computer system having storage controller with memory w

1991-06-06

1996-12-17

Elmore, Reba L.

Boots, shoes, and leggings

364DIG1, 395438, G06F 1300

Patent

active

055863027

ABSTRACT:
This invention relates to personal computers, and more particularly to a personal computer using a small computer systems interface (SCSI) controller coupled directly to the local processor bus for controlling data transfer with storage memory devices such as fixed or removable media electromagnetic storage devices. The storage controller in accordance with this invention has internal volatile memory for transitory storage of data being communicated to coupled volatile memory. It further has control drivers interposed between the internal volatile memory and external volatile memory for controlling communication of data to the external volatile memory, with an enable driver and an enable receiver enchained between the control drivers and a source of signals controlling data communication. The enchained driver and receiver are connected for issuing a write signal to the external volatile memory prior to enablement of data communication through the control drivers and for sustaining a control signal communicated to the control drivers for enabling data communication until after deactivation of the write signal.

REFERENCES:
patent: 4454575 (1984-06-01), Bushaw et al.
patent: 4476522 (1984-10-01), Bushaw et al.
patent: 4709329 (1987-11-01), Hecker
patent: 4821170 (1989-04-01), Bernick et al.
patent: 5070474 (1991-12-01), Tuma et al.
patent: 5175826 (1992-12-01), Begun et al.
"Standard SCSI Bus Facilitates Peripheral Control" by Beims et al., EDN, Apr. 1985, pp. 241-252.
"Multitasking Keys SCSI Control of Large SMD-Compatible Disks" by Bowman, Electronic Design, Jun. 1987, pp. 89-93.

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