Variable frequency microprocessor clock generator

Patent · Tue Apr 04 04:00:00 EDT 1989

OSTI ID:5956605

Branson, C N

A microprocessor-based system is described comprising: a digital central microprocessor provided with a clock input and having a rate of operation determined by the frequency of a clock signal input thereto; memory means operably coupled to the central microprocessor for storing programs respectively including a plurality of instructions and addressable by the central microprocessor; peripheral device operably connected to the central microprocessor, the first peripheral device being addressable by the central microprocessor for control thereby; a system clock generator for generating a digital reference clock signal having a reference frequency rate; and frequency rate reduction circuit means connected between the clock generator and the clock input of the central microprocessor for selectively dividing the reference clock signal to generate a microprocessor clock signal as an input to the central microprocessor for clocking the central microprocessor.

• Assignee: Texas Instruments Inc., Dallas, TX
• Patent Number(s): US 4819164
• OSTI ID: 5956605
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990220* -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTER ARCHITECTURE
COMPUTERS
DIGITAL COMPUTERS
ELECTRONIC CIRCUITS
MEMORY DEVICES
MEMORY MANAGEMENT
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
SIGNAL CONDITIONING
TIMING PROPERTIES