JPS54136243A - Address conversion circuit - Google Patents
Address conversion circuitInfo
- Publication number
- JPS54136243A JPS54136243A JP4334278A JP4334278A JPS54136243A JP S54136243 A JPS54136243 A JP S54136243A JP 4334278 A JP4334278 A JP 4334278A JP 4334278 A JP4334278 A JP 4334278A JP S54136243 A JPS54136243 A JP S54136243A
- Authority
- JP
- Japan
- Prior art keywords
- address
- bit
- program
- mux3
- signal
- 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
- Memory System (AREA)
Abstract
PURPOSE: To decrease the number of steps for program, by converting the same input addresses to different address with the control signal.
CONSTITUTION: The input signal is the memory address of n-bit and the control signals 1 to n. The encoder 1 produces the address pattern of m-bit with the control signal and it is inputted to the multiplexer MUX 3. Among the n-bit of input signals, the decoder 2 decodes the address fo n-l- bit, produces the signal which address of any set is used for MUX3 and is fed to MUX3. MUX3 selects whether the m-bit of the input signal is used or the m-bit of the output of the encoder 1 is used, and it is inputted to the memory address register 4. Accordingly, the control signal can convert the same input address on program to different physical address to simplify the program.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4334278A JPS54136243A (en) | 1978-04-14 | 1978-04-14 | Address conversion circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4334278A JPS54136243A (en) | 1978-04-14 | 1978-04-14 | Address conversion circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54136243A true JPS54136243A (en) | 1979-10-23 |
Family
ID=12661161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4334278A Pending JPS54136243A (en) | 1978-04-14 | 1978-04-14 | Address conversion circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54136243A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54157447A (en) * | 1978-06-02 | 1979-12-12 | Hitachi Ltd | Automatic control unit |
JPS58223831A (en) * | 1982-06-23 | 1983-12-26 | Nec Corp | Selecting system of input and output device |
JPS5983234A (en) * | 1982-11-02 | 1984-05-14 | Matsushita Electronics Corp | Large scale integrated circuit |
-
1978
- 1978-04-14 JP JP4334278A patent/JPS54136243A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54157447A (en) * | 1978-06-02 | 1979-12-12 | Hitachi Ltd | Automatic control unit |
JPS58223831A (en) * | 1982-06-23 | 1983-12-26 | Nec Corp | Selecting system of input and output device |
JPS5983234A (en) * | 1982-11-02 | 1984-05-14 | Matsushita Electronics Corp | Large scale integrated circuit |
JPH0430058B2 (en) * | 1982-11-02 | 1992-05-20 |
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