JPS5762633A - Counting device - Google Patents
Counting deviceInfo
- Publication number
- JPS5762633A JPS5762633A JP13832880A JP13832880A JPS5762633A JP S5762633 A JPS5762633 A JP S5762633A JP 13832880 A JP13832880 A JP 13832880A JP 13832880 A JP13832880 A JP 13832880A JP S5762633 A JPS5762633 A JP S5762633A
- Authority
- JP
- Japan
- Prior art keywords
- count
- notation
- output
- becomes
- count value
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
- H03K23/667—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by switching the base during a counting cycle
Landscapes
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To form a counting device which realizes the count operation of a desired M notation with a simple constitution, by repeating count operations of an N notation and an N+1 notation periodically. CONSTITUTION:In case that the count operation of am M notation, for example, 12.5 notation, BCD 1011 (decimal 11) is stored in a memory 4; and first, the output of an FF7 is 0, and the output of the memory is set to a down counter 3 through exclusive OR circuits 61-63 as it is. When 11 count pulses from an input terminal 2 come, the count value becomes 0000; and the count value of the counter 3 becomes 1111 by the 12th pulse input, and a borrow signal B is outputted, and the output of the FF7 is 1, and outputs of circuit 61-63 are 001, and 1100 is set to the down counter 3. Therefore, the count value of the counter 3 becomes 0000 when the next 12 count pulses come, and the count value becomes 1111 by the 13th pulse, and the borrow signal output is issued, and the FF is set to 0. A count signal of 12.5 notation is taken out as the whole to a borrow signal output terminal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13832880A JPS5762633A (en) | 1980-10-03 | 1980-10-03 | Counting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13832880A JPS5762633A (en) | 1980-10-03 | 1980-10-03 | Counting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5762633A true JPS5762633A (en) | 1982-04-15 |
Family
ID=15219328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13832880A Pending JPS5762633A (en) | 1980-10-03 | 1980-10-03 | Counting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762633A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01238220A (en) * | 1988-03-18 | 1989-09-22 | Fujitsu Ltd | Variable frequency dividing circuit |
JPH06197855A (en) * | 1992-11-11 | 1994-07-19 | Shimomura Komuten:Kk | Cleaning unit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53112651A (en) * | 1977-03-12 | 1978-10-02 | Nec Corp | Variable frequency demultiplier |
JPS5460547A (en) * | 1977-10-24 | 1979-05-16 | Hitachi Ltd | Programable divider |
-
1980
- 1980-10-03 JP JP13832880A patent/JPS5762633A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53112651A (en) * | 1977-03-12 | 1978-10-02 | Nec Corp | Variable frequency demultiplier |
JPS5460547A (en) * | 1977-10-24 | 1979-05-16 | Hitachi Ltd | Programable divider |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01238220A (en) * | 1988-03-18 | 1989-09-22 | Fujitsu Ltd | Variable frequency dividing circuit |
JPH06197855A (en) * | 1992-11-11 | 1994-07-19 | Shimomura Komuten:Kk | Cleaning unit |
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