JPS5783811A - Control circuit - Google Patents
Control circuitInfo
- Publication number
- JPS5783811A JPS5783811A JP15942080A JP15942080A JPS5783811A JP S5783811 A JPS5783811 A JP S5783811A JP 15942080 A JP15942080 A JP 15942080A JP 15942080 A JP15942080 A JP 15942080A JP S5783811 A JPS5783811 A JP S5783811A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- trm
- tro
- trs
- control circuit
- 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
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To improve the use rate of a memory, by applying a control signal, which starts or stops the operation of the memory, as a chip select input of the memory. CONSTITUTION:Input signals are applied to address inputs Ao-An of a memory M, and a control signal is applied to a chip select input CS. Data outputs Do- Dm of the memory M are connected to bases of transistors (TR)Tro-Trm through resistances R2o-R2m. If the signal to the input CS is L, outputs Do- Dm are high-impedance independently of values of inputs Ao-An, and TRs Tro-Trm are turned off, and the control circuit is stopped. If the control signal is H, data stored in the address designated by input signals is outputted to output terminals Do-Dm and is given to bases of TRs Tro-Trm, and TRs to which H-level data is given are turned on, and a current is flowed to a load, and the control circuit is started.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15942080A JPS5783811A (en) | 1980-11-14 | 1980-11-14 | Control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15942080A JPS5783811A (en) | 1980-11-14 | 1980-11-14 | Control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5783811A true JPS5783811A (en) | 1982-05-25 |
Family
ID=15693348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15942080A Pending JPS5783811A (en) | 1980-11-14 | 1980-11-14 | Control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5783811A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119329A (en) * | 1976-03-31 | 1977-10-06 | Canon Inc | Control of copier and the like |
JPS53100745A (en) * | 1977-02-15 | 1978-09-02 | Mitsubishi Electric Corp | Logic circuit |
-
1980
- 1980-11-14 JP JP15942080A patent/JPS5783811A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119329A (en) * | 1976-03-31 | 1977-10-06 | Canon Inc | Control of copier and the like |
JPS53100745A (en) * | 1977-02-15 | 1978-09-02 | Mitsubishi Electric Corp | Logic circuit |
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