US5377325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional wait control between host module and slave module
Assignee: Wistron Corp
•
Filing: 1992-04-21
•
Granted: 1994-12-27
•
Expires: 2012-04-21
Abstract
Abstract A bidirectional wait control system for controlling data movement between a slower-speed host module and a faster-speed slave module by means of a bus interface, comprises: a first wait control signal generating means in the host module, capable of generating a first wait control signal synchronizing with that of the bus interface; a second wait control signal generating means in the slave module, responsive to the first wait control signal, capable of generating a second wait control signal synchronizing with that of the bus interface; and means, upon each module having been presented with the wait control signal from the other module, for terminating data movement between the host module and the slave module.
Inventors
- 👤 Wan-Kan Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/42; G06F13/4204; G06F13/4234; G06F13/4243
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
156 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the second speed being faster than the first speed, the bidirectional wait control system comprising: means for generating a first wait control signal in the host module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the slave module, responsive to the first wait control signal, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 2
Dependent Claim
156 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the second speed being faster than the first speed, the bidirectional wait control system comprising: means for generating a first wait control signal in the host module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the slave module, responsive to the first wait control signal, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 3
Dependent Claim
156 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the first speed being faster than the second speed, the bidirectional wait control system comprising: means for generating a first wait control signal in the slave module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the host module, responsive to the first wait control signal, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the host module has received the first wait control signal and the slave module has received the second wait control signal.
Claim 4
Dependent Claim
156 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the first speed being faster than the second speed, the bidirectional wait control system comprising: means for generating a first wait control signal in the slave module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the host module, responsive to the first wait control signal, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the host module has received the first wait control signal and the slave module has received the second wait control signal.
Claim 5
Dependent Claim
123 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the bidirectional wait control system comprising: means for generating a first wait control signal in the host module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the slave module, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 6
Dependent Claim
123 words
A bidirectional wait control system for controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the bidirectional wait control system comprising: means for generating a first wait control signal in the host module, the first wait control signal being synchronized with the bus interface; means for generating a second wait control signal in the slave module, the second wait control signal being synchronized with the bus interface; and means for terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 7
Independent Claim
149 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the second speed being faster than the first speed, the method comprising the steps of: generating a first wait control signal with the host module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the slave module in response to the first wait control signal, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 8
Independent Claim
149 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the second speed being faster than the first speed, the method comprising the steps of: generating a first wait control signal with the host module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the slave module in response to the first wait control signal, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 9
Independent Claim
149 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the first speed being faster than the second speed, the method comprising the steps of: generating a first wait control signal with the slave module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the host module in response to the first wait control signal, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the host module has received the first wait control signal and the slave module has received the second wait control signal.
Claim 10
Independent Claim
149 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface coupled between the host module and the slave module, the host module operating at a first speed and the slave module operating at a second speed, the first speed being faster than the second speed, the method comprising the steps of: generating a first wait control signal with the slave module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the host module in response to the first wait control signal, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the host module has received the first wait control signal and the slave module has received the second wait control signal.
Claim 11
Independent Claim
106 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface, the method comprising the steps of: generating a first wait control signal with the host module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the slave module, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 12
Independent Claim
106 words
A method for bidirectionally controlling data movement between a host module and a slave module, the data movement occurring via a synchronous bus interface, the method comprising the steps of: generating a first wait control signal with the host module, the first wait control signal being synchronized with the bus interface; generating a second wait control signal with the slave module, the second wait control signal being synchronized with the bus interface; and terminating data movement between the host module and the slave module when the slave module has received the first wait control signal and the host module has received the second wait control signal.
Claim 13
Dependent Claim
24 words
The bidirectional wait control system of claim 1 wherein the host module comprises a processor module and the slave module comprises a memory module.
Claim 14
Dependent Claim
24 words
The bidirectional wait control system of claim 2 wherein the host module comprises a processor module and the slave module comprises a memory module.
Claim 15
Dependent Claim
24 words
The bidirectional wait control system of claim 3 wherein the host module comprises a processor module and the slave module comprises a memory module.
Claim 16
Dependent Claim
21 words
The method of claim 4 wherein the host module comprises a processor module and the slave module comprises a memory module.
Claim 17
Dependent Claim
21 words
The method of claim 5 wherein the host module comprises a processor module and the slave module comprises a memory module.
Claim 18
Dependent Claim
21 words
The method of claim 6 wherein the host module comprises a processor module and the slave module comprises a memory module.
References Cited (Backward Citations)
US4607348A
Cited
US5222229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-26 | 1998-06-27 | 1998-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-26 | 2002-06-27 | 2002-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-26 | 2006-06-27 | 2006-12-27 | $7700.00 | Window Closed / Lapsed |