JPH03121452U - - Google Patents
Info
- Publication number
- JPH03121452U JPH03121452U JP3121490U JP3121490U JPH03121452U JP H03121452 U JPH03121452 U JP H03121452U JP 3121490 U JP3121490 U JP 3121490U JP 3121490 U JP3121490 U JP 3121490U JP H03121452 U JPH03121452 U JP H03121452U
- Authority
- JP
- Japan
- Prior art keywords
- output signal
- start timing
- control output
- control start
- control
- 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
- Microcomputers (AREA)
- Information Transfer Systems (AREA)
Description
第１図は本考案の一実施例のバスサイクルを示
す図、第２図は第１図のバスサイクルを設定する
バスサイクル設定レジスタのビツト構成図、第３
図は従来のバスサイクルを示す図である。
２０１，２０２，２０３……制御出力信号、Ｍ
ＲＥＱ，ＭＳＴＢ，ＩＯＳＴＢ……制御出力信号
。
FIG. 1 is a diagram showing a bus cycle according to an embodiment of the present invention, FIG. 2 is a bit configuration diagram of a bus cycle setting register for setting the bus cycle of FIG. 1, and FIG.
The figure is a diagram showing a conventional bus cycle. 201, 202, 203...control output signal, M
REQ, MSTB, IOSTB...Control output signals.
Claims (1)
御開始タイミングをユーザによつて細かく設定す
る機能と、制御開始アチミングを設定するレジス
タとを有し、前記制御出力信号の細かい設定実現
の為に外部供給クロツク周波数を動作周波数の少
なくとも４倍とすることを特徴とするタマイクロ
コンピユータ。 It has a function for the user to finely set the control start timing of the control output signal to external memory/external I/O, and a register to set the control start timing, and is used to realize fine settings for the control output signal. A microcomputer characterized in that an externally supplied clock frequency is at least four times the operating frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3121490U JPH03121452U (en) | 1990-03-27 | 1990-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3121490U JPH03121452U (en) | 1990-03-27 | 1990-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03121452U true JPH03121452U (en) | 1991-12-12 |
Family
ID=31533956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3121490U Pending JPH03121452U (en) | 1990-03-27 | 1990-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03121452U (en) |
-
1990
- 1990-03-27 JP JP3121490U patent/JPH03121452U/ja active Pending