JPS56103743A - Microprogram controller - Google Patents
Microprogram controllerInfo
- Publication number
- JPS56103743A JPS56103743A JP612080A JP612080A JPS56103743A JP S56103743 A JPS56103743 A JP S56103743A JP 612080 A JP612080 A JP 612080A JP 612080 A JP612080 A JP 612080A JP S56103743 A JPS56103743 A JP S56103743A
- Authority
- JP
- Japan
- Prior art keywords
- control
- counter
- circuit
- clock
- time
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/22—Microcontrol or microprogram arrangements
- G06F9/223—Execution means for microinstructions irrespective of the microinstruction function, e.g. decoding of microinstructions and nanoinstructions; timing of microinstructions; programmable logic arrays; delays and fan-out problems
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To enable versatile time control between microinstructions, by stopping the control operation with one microinstruction of an address generating circuit and releasing the stop with an overflow detection circuit and an external signal. CONSTITUTION:When a time limit control microinstruction is executed, a control circuit 18 is started, and a time limit data is set to a data counter 19 in the circuit 18 from an operation circuit 15. Further, a control FF21 is also set at the same time when the counter 19 is set, and the increment operation by the clock signal from a timing generating circuit 16 is permitted to the counter 19 with the output signal of FF21. On the other hand, the output of FF21 closes a gate circuit 17 to stop the operation of an address counter 12 counting the clock of the generating circuit 16 and to store the next address of the read only memory 11. With this state, the counter 19 closes the count of clock, the overflow of counter is detected at an overflow detection circuit 23, and FF21 is reset to control time control with variety.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP612080A JPS56103743A (en) | 1980-01-21 | 1980-01-21 | Microprogram controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP612080A JPS56103743A (en) | 1980-01-21 | 1980-01-21 | Microprogram controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56103743A true JPS56103743A (en) | 1981-08-19 |
Family
ID=11629640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP612080A Pending JPS56103743A (en) | 1980-01-21 | 1980-01-21 | Microprogram controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56103743A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63113730A (en) * | 1986-10-31 | 1988-05-18 | Agency Of Ind Science & Technol | Controlling system for microprogram |
JPH04304528A (en) * | 1991-04-01 | 1992-10-27 | Matsushita Electric Ind Co Ltd | Sequence control circuit |
-
1980
- 1980-01-21 JP JP612080A patent/JPS56103743A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63113730A (en) * | 1986-10-31 | 1988-05-18 | Agency Of Ind Science & Technol | Controlling system for microprogram |
JPH04304528A (en) * | 1991-04-01 | 1992-10-27 | Matsushita Electric Ind Co Ltd | Sequence control circuit |
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