JPS6457541U - - Google Patents
Info
- Publication number
- JPS6457541U JPS6457541U JP15301187U JP15301187U JPS6457541U JP S6457541 U JPS6457541 U JP S6457541U JP 15301187 U JP15301187 U JP 15301187U JP 15301187 U JP15301187 U JP 15301187U JP S6457541 U JPS6457541 U JP S6457541U
- Authority
- JP
- Japan
- Prior art keywords
- input
- output terminals
- package
- mpu
- utility
- 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 1
Landscapes
- Microcomputers (AREA)
Description
第１図は、この考案のシングルチツプＭＰＵ装
置を例示した回路ブロツク図である。
１……ＣＰＵ部、２……インターフエイスバス
、３……外部接続ピン、４……ピンセレクタ回路
、５……セレクト出力、６……クロツク／Ｘ′Ｔ
ＡＬ、７……リセツト。
FIG. 1 is a circuit block diagram illustrating a single-chip MPU device of this invention. 1...CPU section, 2...Interface bus, 3...External connection pin, 4...Pin selector circuit, 5...Select output, 6...Clock/X'T
AL, 7...Reset.
Claims (1)
ケージの入出力端子との間にピンセレクタ回路を
配し、パツケージの入出力端子の選択をＭＰＵ部
のフアームウエアで行うことを特徴とする入出力
端子数を少なくしたシングルチツプＭＰＵ装置。 (2) パツケージの入出力端子数を１６ピン以下
とした実用新案登録請求の範囲第(1)項記載のシ
ングルチツプＭＰＵ装置。[Claims for Utility Model Registration] (1) A pin selector circuit is arranged between the input/output signals of the single-chip MPU and the input/output terminals of the package, and the selection of the input/output terminals of the package is performed by the firmware of the MPU section. A single-chip MPU device with a reduced number of input/output terminals. (2) The single-chip MPU device according to claim (1) of the utility model registration claim, in which the number of input/output terminals of the package is 16 pins or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15301187U JPS6457541U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15301187U JPS6457541U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6457541U true JPS6457541U (en) | 1989-04-10 |
Family
ID=31428463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15301187U Pending JPS6457541U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6457541U (en) |
-
1987
- 1987-10-06 JP JP15301187U patent/JPS6457541U/ja active Pending
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