JPS5650449A - Microprogram control unit - Google Patents
Microprogram control unitInfo
- Publication number
- JPS5650449A JPS5650449A JP12761079A JP12761079A JPS5650449A JP S5650449 A JPS5650449 A JP S5650449A JP 12761079 A JP12761079 A JP 12761079A JP 12761079 A JP12761079 A JP 12761079A JP S5650449 A JPS5650449 A JP S5650449A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- state
- clock
- supplied
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To reduce the hardware quantity and the number of steps and to shorten the state detection time through performing firmware, by stopping the clock signal until one of plural states is detected by state supervisory instructions.
CONSTITUTION: Clock signal generating circuit b' is controlled by clock stop indication signal 5 supplied from microprogram control circuit (a). Indication signal 5 has the function to stop clock signal 1 from circuit b' and is controlled by firmware. Further, clock restart indication signal 8 is generated from state detecting circuit (d) to make it possible to release stop of clock signal 7 supplied to control circuit (a). Circuit (d) receives interface signal 2 from circuit (a) when microprogram address 9 requires the state of hardware stored in microprogram interface circuit (c); and when circuit (d) detects a specific state, signal 8 is generated and supplied to circuit b' to generate signal 7 again.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12761079A JPS5650449A (en) | 1979-10-02 | 1979-10-02 | Microprogram control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12761079A JPS5650449A (en) | 1979-10-02 | 1979-10-02 | Microprogram control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5650449A true JPS5650449A (en) | 1981-05-07 |
Family
ID=14964335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12761079A Pending JPS5650449A (en) | 1979-10-02 | 1979-10-02 | Microprogram control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5650449A (en) |
-
1979
- 1979-10-02 JP JP12761079A patent/JPS5650449A/en active Pending
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