JPS55154646A - Timing unit - Google Patents
Timing unitInfo
- Publication number
- JPS55154646A JPS55154646A JP6287579A JP6287579A JPS55154646A JP S55154646 A JPS55154646 A JP S55154646A JP 6287579 A JP6287579 A JP 6287579A JP 6287579 A JP6287579 A JP 6287579A JP S55154646 A JPS55154646 A JP S55154646A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- initial value
- memory
- program
- count
- 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 change the timing time without changing the content of program memory, by storing the timing time number data being the initial value of a counter of timing unit in the separate intial value memory other than the memory storing the program of CPU.
CONSTITUTION: The timing time data being the initial value of a counter 4 of a timing unit 10 is stored in a separate initial value memory 1 other than the program memory storing the program of a CPU2. Further, if the start of the counter 4 is required, the counter 4 is set with the initial value stored in the initial value memory 1 according to the address selected with an address selection circuit 3, count is repeated every time clock pulse is fed to the counter 4, and when the count value of the counter 4 reaches a preset count value, the count end signal from the CPU2 is fed to the counter 4. Further, the change of the clock time can easily be made with the replacement or rewrite-in of the initial value memory 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6287579A JPS55154646A (en) | 1979-05-22 | 1979-05-22 | Timing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6287579A JPS55154646A (en) | 1979-05-22 | 1979-05-22 | Timing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55154646A true JPS55154646A (en) | 1980-12-02 |
Family
ID=13212870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6287579A Pending JPS55154646A (en) | 1979-05-22 | 1979-05-22 | Timing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55154646A (en) |
-
1979
- 1979-05-22 JP JP6287579A patent/JPS55154646A/en active Pending
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