JPS5599650A - Integrated circuit - Google Patents
Integrated circuitInfo
- Publication number
- JPS5599650A JPS5599650A JP692279A JP692279A JPS5599650A JP S5599650 A JPS5599650 A JP S5599650A JP 692279 A JP692279 A JP 692279A JP 692279 A JP692279 A JP 692279A JP S5599650 A JPS5599650 A JP S5599650A
- Authority
- JP
- Japan
- Prior art keywords
- region
- clock
- speed process
- speed
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To reduce furthermore the power consumption of the microprocessor using the complementary metal oxide semiconductor CMOS, by switching the internal clock velocity within the microprocessor between the high and low speeds.
CONSTITUTION: Fixed memory unit ROM program region is divided into region 1 requiring no high-speed process and region 2 requiring the high-speed process each for programming. When the process jumps from region 1 to 2, bit B is supplied through input terminal 14. Thus the basic clock of the external clock is selected to terminal 11 to perform the high-speed process. In case the jump is given from region 2 to 1, the low-speed clock in which the basic clock is divided is selected to terminal 11 to perform the low-speed process.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP692279A JPS5599650A (en) | 1979-01-23 | 1979-01-23 | Integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP692279A JPS5599650A (en) | 1979-01-23 | 1979-01-23 | Integrated circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5599650A true JPS5599650A (en) | 1980-07-29 |
Family
ID=11651730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP692279A Pending JPS5599650A (en) | 1979-01-23 | 1979-01-23 | Integrated circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5599650A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6370321A (en) * | 1986-09-12 | 1988-03-30 | Yokogawa Electric Corp | Microprocessor |
WO2002088913A1 (en) * | 2001-04-27 | 2002-11-07 | International Business Machines Corporation | Method and apparatus for controlling processor operation speed |
-
1979
- 1979-01-23 JP JP692279A patent/JPS5599650A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6370321A (en) * | 1986-09-12 | 1988-03-30 | Yokogawa Electric Corp | Microprocessor |
WO2002088913A1 (en) * | 2001-04-27 | 2002-11-07 | International Business Machines Corporation | Method and apparatus for controlling processor operation speed |
GB2393294A (en) * | 2001-04-27 | 2004-03-24 | Ibm | Method and apparatus for controlling processor operation speed |
GB2393294B (en) * | 2001-04-27 | 2005-04-06 | Ibm | Method and apparatus for controlling operation speed of processor |
US7137017B2 (en) | 2001-04-27 | 2006-11-14 | International Business Machines Corporation | Method and apparatus for controlling processor operation speed |
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