Electrical computers and digital data processing systems: input/ – Intrasystem connection – Protocol
Patent
1997-08-15
1999-09-14
Ray, Gopal C.
Electrical computers and digital data processing systems: input/
Intrasystem connection
Protocol
714 39, G06F 1300
Patent
active
059516615
ABSTRACT:
A computer system employing a bus protocol violation monitor system and method. The monitor system includes a bus wait timer logic circuit which comprises a state machine that receives a portion of the bus interface control signals, a programmable timer module and a plurality of data selectors that are actuatable responsive to a control input. In addition to storing the violation information in a register, the system provides for interrupts with graded levels of priorities.
REFERENCES:
patent: 4534023 (1985-08-01), Peck et al.
patent: 5347524 (1994-09-01), I'Anson et al.
patent: 5526289 (1996-06-01), Dinh et al.
patent: 5574667 (1996-11-01), Dinh et al.
patent: 5631800 (1997-05-01), Jin et al.
patent: 5634038 (1997-05-01), Saitoh
patent: 5638895 (1997-06-01), Dodson
patent: 5751975 (1998-05-01), Gillespie et al.
patent: 5754552 (1998-05-01), Allmond et al.
patent: 5819027 (1998-10-01), Budelman et al.
patent: 5864653 (1999-01-01), Tavallaei et al.
"Remote 8-bit I/O expander for I.sup.2 C-Bus" Data Sheet; Philips Semiconductor; Apr. 2, 1997; pp. 1-23.
Farnsworth, C.; "Low Power Implementation of an I.sup.2 C-Bus Expander"; http://maveric0.uwaterloo.ca/amulet/publications/thesis farnsworth94 msc.html; Jun. 16, 1997; one page.
Collins, Andy; "Interfacing TMS370 Microcontrollers to I.sup.2 C-Bus ICs"; Logikos; wysiwyg://lll/http://www.logikos.com/tms370.htm1; Jun. 16, 1997; pp. 1-6.
"I.sup.2 C-Bus Expander" Application Note AN036; Philips Semiconductors Programmable Logic Devices; Oct., 1993; 22 pages.
"The PCI (Peripheral Component Interconnect) Bus"; Aug. 6, 1997; pci.txt at www.gl.umbc.edu; pp. 1-7.
"Re: What's the difference between locks and semaphores?"; Jim Barton (jmb@patton.wpd.sgi.com) Jan. 2, 1991; Accessed Jun. 16, 1997; http://www.sgi.com/Archive/comp.sys.sgi/1991/Jan/0006.html.
"Internal Data Structures, 6.4.3 Semaphores" Basic Concepts; Accessed Jul. 11, 1997; http://linux.www.db.erau.edu/LPG
ode47.html.
"The PCI Local Bus"; Accessed Jul. 27, 1 997; http://www.rns.com/whats new/wh pci.html.
"PCI Bus Technology" Information Brief; IBM Personal Computing Solutions; Accessed Jul. 27, 1997; http://www.us.pc.ibm.com/infobrf/ibpci.html.
"PCI164 Screamer Functional Diagram" Microway; Accessed Jul. 27, 1997; http://www.microway.com/block.html.
"The PCI (Peripheral Component Interconnect) Local Bus" description of PCI Bus; Accessed Jul. 27, 1997; http://www.sundance.com/pci.html.
"CMOS Bus Switches Provide Zero Delay Bus Communication" Application Note AN-09; Quality Semiconductor Inc.; date unknown; pp. 1-9.
"High-Performance CMOS Analog 8-Channel Switch" QS4A05Q Preliminary; Quality Semiconductor Inc.; May 30, 1996; pp. 1-7.
"Quickswitch.RTM. Converts TTL Logic to Hot Plug Operation" Application Note AN-13; Quality Semiconductor Inc.; date unknown; pp. 1-5.
"The PCI (Peripheral Component Interconnect) Bus"; Aug. 6, 1997; pci.txt at www.gl.umbc.edu; pp. 1-7.
Rose Eric E.
Tavallaei Siamak
Compaq Computer Corporation
Ray Gopal C.
LandOfFree
Bus protocol violation monitor systems and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bus protocol violation monitor systems and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bus protocol violation monitor systems and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1505755