JPS54154951A - Microprogram control circuit - Google Patents
Microprogram control circuitInfo
- Publication number
- JPS54154951A JPS54154951A JP6398178A JP6398178A JPS54154951A JP S54154951 A JPS54154951 A JP S54154951A JP 6398178 A JP6398178 A JP 6398178A JP 6398178 A JP6398178 A JP 6398178A JP S54154951 A JPS54154951 A JP S54154951A
- Authority
- JP
- Japan
- Prior art keywords
- block
- supplied
- clock signals
- blocks
- microorder
- 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
- Power Sources (AREA)
Abstract
PURPOSE: To stop the operation of the unnecessary block and thus to realize the power saving by supplying the clock signals only to the necessary blocks via the microorder.
CONSTITUTION: The microprogram stored in ROM7 is drawn out according to the value of program counter 9 and then decided through order decoder 11 in order to control the necessary blocks. The number of the blocks is limited for one microproorder. In this connection, the clock signals delivered from clock signal circuit 6 are supplied individually to each block, and thus the clock signals are supplied only to the necessary blocks by the microorder decoded. As a result, no clock signal is supplied to the block the operation of which is not required at that moment, thus reducing the power consumption for the circuit.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6398178A JPS54154951A (en) | 1978-05-29 | 1978-05-29 | Microprogram control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6398178A JPS54154951A (en) | 1978-05-29 | 1978-05-29 | Microprogram control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54154951A true JPS54154951A (en) | 1979-12-06 |
Family
ID=13244961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6398178A Pending JPS54154951A (en) | 1978-05-29 | 1978-05-29 | Microprogram control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154951A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62145458A (en) * | 1985-12-20 | 1987-06-29 | Nec Corp | Microcomputer |
JPS63178620A (en) * | 1987-01-19 | 1988-07-22 | Nec Corp | Clock strobe circuit |
-
1978
- 1978-05-29 JP JP6398178A patent/JPS54154951A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62145458A (en) * | 1985-12-20 | 1987-06-29 | Nec Corp | Microcomputer |
JPS63178620A (en) * | 1987-01-19 | 1988-07-22 | Nec Corp | Clock strobe circuit |
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