JPS5667452A - Microprogram control circuit - Google Patents
Microprogram control circuitInfo
- Publication number
- JPS5667452A JPS5667452A JP14299579A JP14299579A JPS5667452A JP S5667452 A JPS5667452 A JP S5667452A JP 14299579 A JP14299579 A JP 14299579A JP 14299579 A JP14299579 A JP 14299579A JP S5667452 A JPS5667452 A JP S5667452A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- control circuit
- restart
- gate
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 abstract 1
Landscapes
- Electric Clocks (AREA)
- Power Sources (AREA)
Abstract
PURPOSE: To restart the clock signal from an arbitrary timing, by designating the restart timing after stop of clock signal with microinstruction.
CONSTITUTION: A signal from an oscillation circuit 1 is input to a clock restart control circuit 9 via a frequency divider circuit 2. The circuit 9 consists of a mask 10 to obtain several kinds of signals 13 from a signal 12 in the circuit 2 and a PLA 11 to select an arbitrary signal from the signal 13 by a microinstruction 14. The output of the PLA 11 is output via an AND gate 3 and an OR gate 5. Further, the output of the circuit 2 is controlled with a key input control circuit 6 and an AND gate 4. Thus, the microprogram control circuit is changed for the mask by the object to be used and the restart timing can be made suitable for the object, and the current consumption can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14299579A JPS5667452A (en) | 1979-11-05 | 1979-11-05 | Microprogram control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14299579A JPS5667452A (en) | 1979-11-05 | 1979-11-05 | Microprogram control circuit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1195862A Division JPH02210513A (en) | 1989-07-28 | 1989-07-28 | Microprogram control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667452A true JPS5667452A (en) | 1981-06-06 |
JPS6350725B2 JPS6350725B2 (en) | 1988-10-11 |
Family
ID=15328485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14299579A Granted JPS5667452A (en) | 1979-11-05 | 1979-11-05 | Microprogram control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667452A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147218A (en) * | 1980-04-18 | 1981-11-16 | Sharp Corp | System start control circuit by time counting signal |
JPH02210513A (en) * | 1989-07-28 | 1990-08-21 | Seiko Epson Corp | Microprogram control circuit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5098255A (en) * | 1973-12-26 | 1975-08-05 | ||
JPS5110745A (en) * | 1974-07-17 | 1976-01-28 | Fujitsu Ltd | KUROTSUKUSE IGYOHOSHIKI |
JPS52149432A (en) * | 1976-06-08 | 1977-12-12 | Toshiba Corp | Electronic device |
JPS54117649A (en) * | 1978-03-06 | 1979-09-12 | Fujitsu Ltd | Speed variable-type central processing unit |
-
1979
- 1979-11-05 JP JP14299579A patent/JPS5667452A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5098255A (en) * | 1973-12-26 | 1975-08-05 | ||
JPS5110745A (en) * | 1974-07-17 | 1976-01-28 | Fujitsu Ltd | KUROTSUKUSE IGYOHOSHIKI |
JPS52149432A (en) * | 1976-06-08 | 1977-12-12 | Toshiba Corp | Electronic device |
JPS54117649A (en) * | 1978-03-06 | 1979-09-12 | Fujitsu Ltd | Speed variable-type central processing unit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147218A (en) * | 1980-04-18 | 1981-11-16 | Sharp Corp | System start control circuit by time counting signal |
JPS6329234B2 (en) * | 1980-04-18 | 1988-06-13 | Sharp Kk | |
JPH02210513A (en) * | 1989-07-28 | 1990-08-21 | Seiko Epson Corp | Microprogram control circuit |
JPH0431402B2 (en) * | 1989-07-28 | 1992-05-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS6350725B2 (en) | 1988-10-11 |
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