Boots – shoes – and leggings
Patent
1993-10-29
1996-05-28
Lee, Thomas C.
Boots, shoes, and leggings
364DIG1, 3642383, 3642802, 3642842, G06F 13368
Patent
active
055220860
ABSTRACT:
A mechanism is provided for software configuration of ISA bus cards or other devices connected to a computer processor by a bus that does not provide for sharing of an address by multiple devices. Such a device is configured under software control by selecting multiple addresses commonly used by a read-only device, writing from the computer processor to the configuration logic at one of such addresses a predetermined data word as part of a predetermined security access sequence, writing from the computer processor to the configuration logic at one of the addresses configuration information including a device based address, and the configuration logic, in response to the predetermined security access sequence, storing the configuration information in configuration registers, thereby configuring the device. The addresses used may be addresses used by a game device, such as a joystick. An apparatus for configuring such a device includes multiple configuration registers, circuitry for qualifying access to the configuration registers by verifying compliance with the predetermined security access sequence, the predetermined security access sequence including the central processor writing a predetermined data word to the configuration logic at one of multiple addresses commonly used by a read-only device, and circuitry for, in response to the predetermined security access sequence, storing in the configuration registers configuration information written by the computer processor to one of the multiple addresses, the configuration information including a device base address.
REFERENCES:
patent: 4106091 (1978-08-01), Hepworth et al.
patent: 4589063 (1986-05-01), Shah et al.
patent: 4675813 (1987-06-01), Locke
patent: 4787030 (1988-11-01), Harter et al.
patent: 4815034 (1989-03-01), Mackey
patent: 4849931 (1989-07-01), Ishii et al.
patent: 4974151 (1990-11-01), Advani et al.
patent: 5138706 (1992-08-01), Melo et al.
patent: 5243700 (1993-09-01), Larsen et al.
patent: 5257387 (1993-10-01), Richek et al.
patent: 5367640 (1994-11-01), Hamilton et al.
patent: 5371892 (1994-12-01), Petersen et al.
patent: 5420987 (1995-05-01), Reid et al.
patent: 5428748 (1995-06-01), Davidson et al.
Proposal for Plug and Play ISA Specification, Version 0.9, dated Mar. 27, 1993, pp. i-42, Copyright 1993 by Intel Corporation and Microsoft Corporation.
"IBM Personal Computer Hardware Reference Libary--Technical Reference", 1985, pp. 1-8 to 1-21.
Eggebrecht, Lewis "Interfacing to the IBM Personal Computer", 1990, pp. 158-169, 193-204.
Burton Mitchell G.
Wilson Mark J.
Dinh D.
Lee Thomas C.
Sierra Semiconductor Canada, Inc.
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