JPH03104233U - - Google Patents
Info
- Publication number
- JPH03104233U JPH03104233U JP1990011290U JP1129090U JPH03104233U JP H03104233 U JPH03104233 U JP H03104233U JP 1990011290 U JP1990011290 U JP 1990011290U JP 1129090 U JP1129090 U JP 1129090U JP H03104233 U JPH03104233 U JP H03104233U
- Authority
- JP
- Japan
- Prior art keywords
- program rom
- interrupt vector
- processing
- contents
- rom
- 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 2
- 239000003607 modifier Substances 0.000 description 1
Description
第１図は本考案の第一の実施例を示すマイクロ
プロセツサのブロツク図、第２図は本考案の第二
の実施例を示すマイクロプロセツサのブロツク図
である。
１……レジスタ、２……データバス、３……割
込みベクタ・テーブル（ＲＯＭ）、４……プログ
ラム（ＲＯＭ）、５……割込みコントローラ、６
……バス・コントローラ、７……命令キユー、８
……マイクロコード、９……テンポラリレジスタ
、１０……ＡＬＵ、１１……アドレスモデイフア
イア（ＡＤＭ）、１２……アドレスバス、１３…
…データ（ＲＡＭ）、１４……タイマ、１５……
ＤＭＡコントローラ、１６……シリアルコントロ
ーラ。
FIG. 1 is a block diagram of a microprocessor showing a first embodiment of the present invention, and FIG. 2 is a block diagram of a microprocessor showing a second embodiment of the present invention. 1...Register, 2...Data bus, 3...Interrupt vector table (ROM), 4...Program (ROM), 5...Interrupt controller, 6
...Bus controller, 7...Instruction queue, 8
... Microcode, 9 ... Temporary register, 10 ... ALU, 11 ... Address modifier (ADM), 12 ... Address bus, 13 ...
...Data (RAM), 14...Timer, 15...
DMA controller, 16... serial controller.
Claims (1)
プログラムＲＯＭとを有し、割込み処理を行なう
際に前記割込みベクタから処理アドレスを読み込
んで処理ルーチンを決定し、プログラムＲＯＭを
実行することはできても割込みベクタの内容およ
びプログラムＲＯＭの内容をデータとして読み出
すことができないようにしたことを特徴とするマ
イクロプロセツサ。 It has a CPU, an interrupt vector table ROM, and a program ROM, and when performing interrupt processing, it reads the processing address from the interrupt vector, determines the processing routine, and executes the program ROM, but the contents of the interrupt vector and a microprocessor characterized in that the contents of the program ROM cannot be read out as data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990011290U JPH03104233U (en) | 1990-02-06 | 1990-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990011290U JPH03104233U (en) | 1990-02-06 | 1990-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03104233U true JPH03104233U (en) | 1991-10-29 |
Family
ID=31744730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990011290U Pending JPH03104233U (en) | 1990-02-06 | 1990-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03104233U (en) |
-
1990
- 1990-02-06 JP JP1990011290U patent/JPH03104233U/ja active Pending