Method for using computer system memory as a modem data buffer b

Details Method for using computer system memory as a modem data buffer b Method for using computer system memory as a modem data buffer b

1998-03-31

2000-10-17

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

710 4, 710 33, 710 65, 710 71, G06F 1338, G06F 1314

Patent

active

061346098

ABSTRACT:
A method and associated circuitry are described for interfacing a software-based modem in a computer system. Memory/modem interface circuitry is integrated within a system controller coupling a main memory with a microprocessor. A dedicated region of the main memory is configured as separate transmit data and received data buffer regions. Buffer address registers included within the system controller store values pointing to address locations within the buffer regions of the memory for next data in and next data out. The values programmed in these registers are incremented responsive to associated data transfers in/out of the buffer regions, and the transmit data and received data buffer regions function as FIFOs. The frequency and duration of processor utilization imposed by software-based modems is significantly reduced, due to FIFO operations functioning at main memory access speed.

REFERENCES:
patent: 4677492 (1987-06-01), Fellerer
patent: 5404351 (1995-04-01), Inoue
patent: 5450530 (1995-09-01), Snyder et al.
patent: 5537654 (1996-07-01), Bedingfield et al.
patent: 5572148 (1996-11-01), Lytle et al.
patent: 5627990 (1997-05-01), Cord et al.
patent: 5696600 (1997-12-01), Perkins
patent: 5754590 (1998-05-01), Bays et al.
patent: 5768628 (1998-06-01), Priem
patent: 5787305 (1998-07-01), Chen
patent: 5797028 (1998-08-01), Gulick et al.
patent: 5802483 (1998-09-01), Morris
patent: 5822553 (1998-10-01), Gifford et al.
patent: 5905861 (1999-05-01), Lovell

Affiliated with

Also associated with

Rating

Method for using computer system memory as a modem data buffer b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for using computer system memory as a modem data buffer b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for using computer system memory as a modem data buffer b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-479208