JPH0187449U - - Google Patents
Info
- Publication number
- JPH0187449U JPH0187449U JP18459287U JP18459287U JPH0187449U JP H0187449 U JPH0187449 U JP H0187449U JP 18459287 U JP18459287 U JP 18459287U JP 18459287 U JP18459287 U JP 18459287U JP H0187449 U JPH0187449 U JP H0187449U
- Authority
- JP
- Japan
- Prior art keywords
- frequency dividing
- circuit
- dividing circuit
- bus
- frequency
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Test And Diagnosis Of Digital Computers (AREA)
Description
第１図はこの考案の一実施例の分周回路のブロ
ツク図、第２図は従来の分周回路のブロツク図、
第３図は基本クロツク信号および１６分周信号の
波形図である。
図において、１は基本クロツクの供給点、２は
分周回路、３は各種機能回路、４は基本クロツク
信号、５は１６分周後クロツク信号、６は切換ス
イツチ、７は回避バスを示す。なお、図中同一符
号は同一、または相当部分を示す。
Figure 1 is a block diagram of a frequency divider circuit according to an embodiment of this invention, Figure 2 is a block diagram of a conventional frequency divider circuit,
FIG. 3 is a waveform diagram of the basic clock signal and the 16 frequency divided signal. In the figure, 1 is a basic clock supply point, 2 is a frequency dividing circuit, 3 is various functional circuits, 4 is a basic clock signal, 5 is a clock signal after frequency division by 16, 6 is a changeover switch, and 7 is an avoidance bus. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
て動作する回路の分周回路を回避するバスと切換
機能を設けたことを特徴とするマイクロコンピユ
ータの分周回路。 A frequency dividing circuit for a microcomputer, characterized in that it is provided with a bus and a switching function to avoid the frequency dividing circuit of a circuit that operates using a signal generated by frequency dividing a clock as a synchronizing signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18459287U JPH0187449U (en) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18459287U JPH0187449U (en) | 1987-12-02 | 1987-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0187449U true JPH0187449U (en) | 1989-06-09 |
Family
ID=31475941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18459287U Pending JPH0187449U (en) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0187449U (en) |
-
1987
- 1987-12-02 JP JP18459287U patent/JPH0187449U/ja active Pending