JPH03110527U - - Google Patents
Info
- Publication number
- JPH03110527U JPH03110527U JP1689990U JP1689990U JPH03110527U JP H03110527 U JPH03110527 U JP H03110527U JP 1689990 U JP1689990 U JP 1689990U JP 1689990 U JP1689990 U JP 1689990U JP H03110527 U JPH03110527 U JP H03110527U
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- clock signal
- frequency
- signal
- memory
- 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
Description
第1図はこの考案による計算機の構成ブロツク
図、第2図はこの考案による計算機の動作タイミ
ングチヤートの図、第3図は従来の計算機の構成
図、第4図と第5図は従来の計算機の動作タイミ
ングチヤートの図である。
図中、1はCPU、2はクロツク発生回路、3
はアドレスデコーダ、4はメモリ、5はウエイト
コントロール回路、6はメモリリード信号、7は
アドレス信号、8はチツプセレクト信号、9はウ
エイト信号1、10はウエイト信号2、11はク
ロツク信号、12はデータ、13はデコーダ、1
4はカウント値設定信号、15はダウンカウンタ
、16は同期回路、17は分周回路、18は可変
クロツク信号である。なお、図中、同一あるいは
相当部分には同一符号を付して示してある。
Figure 1 is a block diagram of the configuration of a computer based on this invention, Figure 2 is an operational timing chart of a computer based on this invention, Figure 3 is a configuration diagram of a conventional computer, and Figures 4 and 5 are conventional computers. FIG. 2 is a diagram of an operation timing chart of FIG. In the figure, 1 is the CPU, 2 is the clock generation circuit, and 3
is an address decoder, 4 is a memory, 5 is a wait control circuit, 6 is a memory read signal, 7 is an address signal, 8 is a chip select signal, 9 is a wait signal 1, 10 is a wait signal 2, 11 is a clock signal, 12 is a data, 13 is a decoder, 1
4 is a count value setting signal, 15 is a down counter, 16 is a synchronization circuit, 17 is a frequency dividing circuit, and 18 is a variable clock signal. In the drawings, the same or corresponding parts are designated by the same reference numerals.
Claims (1)
メモリと、CPUからのアドレス信号とメモリリ
ード信号を入力してメモリを選択するチツプセレ
クト信号を出力するアドレスデコーダと、CPU
へクロツク信号を供給するクロツク発生回路と、
クロツク信号の周波数を変換するダウンカウンタ
および同期回路で構成する分周回路と、ダウンカ
ウンタのカウント値を制御する信号であるカウン
ト値設定信号を送付するデコーダとで構成した計
算機において、分周回路を用いてCPUへ供給す
るクロツク信号の周波数を可変にしたことを特徴
とする計算機。 A CPU that performs calculations and control, a memory that stores data, an address decoder that receives address signals and memory read signals from the CPU, and outputs chip select signals that select memory;
a clock generation circuit that supplies a clock signal;
A frequency dividing circuit is used in a computer consisting of a frequency dividing circuit consisting of a down counter and a synchronization circuit that converts the frequency of a clock signal, and a decoder that sends a count value setting signal that is a signal that controls the count value of the down counter. A computer characterized in that the frequency of a clock signal supplied to a CPU is made variable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1689990U JPH03110527U (en) | 1990-02-22 | 1990-02-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1689990U JPH03110527U (en) | 1990-02-22 | 1990-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03110527U true JPH03110527U (en) | 1991-11-13 |
Family
ID=31520141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1689990U Pending JPH03110527U (en) | 1990-02-22 | 1990-02-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03110527U (en) |
-
1990
- 1990-02-22 JP JP1689990U patent/JPH03110527U/ja active Pending
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