JPH0366440U - - Google Patents
Info
- Publication number
- JPH0366440U JPH0366440U JP12540189U JP12540189U JPH0366440U JP H0366440 U JPH0366440 U JP H0366440U JP 12540189 U JP12540189 U JP 12540189U JP 12540189 U JP12540189 U JP 12540189U JP H0366440 U JPH0366440 U JP H0366440U
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- switching
- custom lsi
- emulation
- terminal pin
- 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
Landscapes
- Test And Diagnosis Of Digital Computers (AREA)
- Microcomputers (AREA)
Description
第１図は、本考案の一実施例によるＣＰＵ組込
型カスタムＬＳＩの内部構成を示すブロツク図、
第２図は、従来のＣＰＵ組込型カスタムＬＳＩの
内部構成を示すブロツク図である。
１２……特定機能ブロツク、１４……ＣＰＵブ
ロツク、１６〜２４……端子ピン、２６，２８…
…切替回路、３０……ＩＣＥ（インサーキツト・
エミユレータ）。
FIG. 1 is a block diagram showing the internal configuration of a CPU-embedded custom LSI according to an embodiment of the present invention;
FIG. 2 is a block diagram showing the internal configuration of a conventional CPU-embedded custom LSI. 12...Specific function block, 14...CPU block, 16-24...Terminal pin, 26, 28...
...Switching circuit, 30...ICE (in circuit)
emulator).
Claims (1)
の端子ピンと、 エミユレーシヨン手段と接続するための第２の
端子ピンと、 前記切替制御信号にしたがつて前記ＣＰＵをイ
ネーブル状態もしくはデイスエーブル状態に切り
替える第１の切替手段と、 前記切替制御信号にしたがつて内部の特定機能
回路に対して前記ＣＰＵまたは前記エミユレーシ
ヨン手段のいずれかを選択的に接続する第２の切
替手段と、 を具備することを特徴とするＣＰＵ組込型カスタ
ムＬＳＩ。[Scope of claim for utility model registration] In a custom LSI incorporating a CPU, the first
a second terminal pin for connection to an emulation means; a first switching means for switching the CPU between an enable state and a disable state according to the switching control signal; A CPU-embedded custom LSI, comprising: second switching means for selectively connecting either the CPU or the emulation means to an internal specific functional circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12540189U JPH0366440U (en) | 1989-10-26 | 1989-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12540189U JPH0366440U (en) | 1989-10-26 | 1989-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366440U true JPH0366440U (en) | 1991-06-27 |
Family
ID=31673272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12540189U Pending JPH0366440U (en) | 1989-10-26 | 1989-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366440U (en) |
-
1989
- 1989-10-26 JP JP12540189U patent/JPH0366440U/ja active Pending