JPH0397744U - - Google Patents

Info

Publication number
JPH0397744U
JPH0397744U JP542690U JP542690U JPH0397744U JP H0397744 U JPH0397744 U JP H0397744U JP 542690 U JP542690 U JP 542690U JP 542690 U JP542690 U JP 542690U JP H0397744 U JPH0397744 U JP H0397744U
Authority
JP
Japan
Prior art keywords
ram
accessed
external computer
predetermined address
port ram
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
Application number
JP542690U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP542690U priority Critical patent/JPH0397744U/ja
Publication of JPH0397744U publication Critical patent/JPH0397744U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は、本考案の評価用マイクロコンピユータ
を示すブロツク図である。 １……評価用マイクロコンピユータ、２……Ｒ
ＯＭ、３……ホストコンピユータ、７……デユア
ルポートＲＡＭ、８……データポインタＤＰ。 The drawing is a block diagram showing an evaluation microcomputer of the present invention. 1...Evaluation microcomputer, 2...R
OM, 3...Host computer, 7...Dual port RAM, 8...Data pointer DP.

Claims (1)

【実用新案登録請求の範囲】 所定アドレスがアドレスカウンタ又は外部コン
ピユータでアクセスされることによつて、前記所
定アドレスに対してデータの書き込み／読み出し
が行われるＲＡＭを内蔵し、外部ＲＯＭのプログ
ラムデータを読み込んで動作する評価用マイクロ
コンピユータにおいて、 前記ＲＡＭを、前記アドレスカウンタ及び前記
外部コンピユータで非同期にアクセス可能なデユ
アルポートＲＡＭとし、 前記評価用マイクロコンピユータの動作中、前
記外部コンピユータによつて、前記デユアルポー
トＲＡＭの所定アドレスに対してデータの書き込
み／読み出しを可能としたことを特徴とする評価
用マイクロコンピユータ。[Claims for Utility Model Registration] A built-in RAM that writes/reads data to/from a predetermined address when the predetermined address is accessed by an address counter or an external computer, and stores program data in an external ROM. In the evaluation microcomputer that reads and operates, the RAM is a dual port RAM that can be accessed asynchronously by the address counter and the external computer, and during the operation of the evaluation microcomputer, the dual port RAM is accessed by the external computer. An evaluation microcomputer characterized in that it is possible to write/read data to/from a predetermined address of a port RAM.
JP542690U 1990-01-23 1990-01-23 Pending JPH0397744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP542690U JPH0397744U (en) 1990-01-23 1990-01-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP542690U JPH0397744U (en) 1990-01-23 1990-01-23

Publications (1)

Publication Number Publication Date
JPH0397744U true JPH0397744U (en) 1991-10-08

Family

ID=31509140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP542690U Pending JPH0397744U (en) 1990-01-23 1990-01-23

Country Status (1)

Country Link
JP (1) JPH0397744U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216268A (en) * 1983-05-25 1984-12-06 Nec Corp Information processing device having multiport ram
JPS6290733A (en) * 1985-10-16 1987-04-25 Sanyo Electric Co Ltd Device for displaying content of ram
JPS6453240A (en) * 1987-05-15 1989-03-01 Nec Corp Evaluating microprocessor
JPH01309138A (en) * 1988-06-07 1989-12-13 Yokogawa Electric Corp In-circuit emulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216268A (en) * 1983-05-25 1984-12-06 Nec Corp Information processing device having multiport ram
JPS6290733A (en) * 1985-10-16 1987-04-25 Sanyo Electric Co Ltd Device for displaying content of ram
JPS6453240A (en) * 1987-05-15 1989-03-01 Nec Corp Evaluating microprocessor
JPH01309138A (en) * 1988-06-07 1989-12-13 Yokogawa Electric Corp In-circuit emulator

Similar Documents

Publication Publication Date Title
JPH0397744U (en)
JPH0452267U (en)
JPH02108146U (en)
JPS6452199U (en)
JPH01155542U (en)
JPH0164759U (en)
JPS60640U (en) Parallel processing system for DMA processing and program measurement mode
JPS6335163U (en)
JPS5894034U (en) tracing device
JPH0482729U (en)
JPS61164551U (en)
JPH01100241U (en)
JPH0196047U (en)
JPS60184144U (en) microcomputer device
JPH02297682A (en) Microcomputer
JPS647348U (en)
JPH0223138U (en)
JPH022751U (en)
JPS5854703U (en) Controller input selection device
JPH01106941U (en)
JPH02138342U (en)
JPH0393948U (en)
JPH0452250U (en)
JPH01135552U (en)
JPH0363246U (en)