JPS54155743A - Control system of microprocessor - Google Patents
Control system of microprocessorInfo
- Publication number
- JPS54155743A JPS54155743A JP6391278A JP6391278A JPS54155743A JP S54155743 A JPS54155743 A JP S54155743A JP 6391278 A JP6391278 A JP 6391278A JP 6391278 A JP6391278 A JP 6391278A JP S54155743 A JPS54155743 A JP S54155743A
- Authority
- JP
- Japan
- Prior art keywords
- microprogram
- output
- microprocessor
- μpseq2
- wcs
- 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
Abstract
PURPOSE: To make it possible to modify the content of a microprogram at a high speed and also to execute it at a high speed, by controlling a microprocessor by the latched output of each memory unit.
CONSTITUTION: Once an instruction is outputted from microprogram storage 16 by the microprogram address output of sequence controller μPSEQ2, μPSEQ2 outputs a new address at the same time when the instruction is latched by register LATCH 14, and during this time, microprocessor ALU19 executes the instruction. To use memory element WCS/M4 as a microprogram storage, assignment SEL.FF3 is set a mode of WCS(writable control storage), and consequently WCS/M4 is disconnected from address bus 1a and data bus 1b to output a microinstruction according to the address output of μPSEQ2.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6391278A JPS54155743A (en) | 1978-05-30 | 1978-05-30 | Control system of microprocessor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6391278A JPS54155743A (en) | 1978-05-30 | 1978-05-30 | Control system of microprocessor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54155743A true JPS54155743A (en) | 1979-12-08 |
Family
ID=13243010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6391278A Pending JPS54155743A (en) | 1978-05-30 | 1978-05-30 | Control system of microprocessor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155743A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119464A (en) * | 1982-12-21 | 1984-07-10 | テキサス・インスツルメンツ・インコ−ポレイテツド | Digital processor |
-
1978
- 1978-05-30 JP JP6391278A patent/JPS54155743A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119464A (en) * | 1982-12-21 | 1984-07-10 | テキサス・インスツルメンツ・インコ−ポレイテツド | Digital processor |
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