JPS60116545U

JPS60116545U - interface control device

Info

Publication number: JPS60116545U
Application number: JP472384U
Authority: JP
Inventors: 須田　充弘
Original assignee: 日本電気株式会社
Priority date: 1984-01-18
Filing date: 1984-01-18
Publication date: 1985-08-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すブロック図、第２図は
上記一実施例の動作を説明するための流れ図である。１・・・・・・共通制御回路、２・・・・・・割込み検
出回路、３・・・・・・ステータス回路、４・・・・・
・データ出力回路、５・・・・・・インタフェース回路
、■ＲＯ・・・・・・割込み要求信号、ＩＲｌ・・・・
・・割込み発生信号、ＩＲ２・・・・・・外部割込み信
号、ＤＯ・・・・・・入出力データ、Ｄｌ・・・・・・
出力データ、ＳＯ・・・・・・ステータス情報、Ｓｌ・
・・・・・状態入力信号、ＣＯ・・・・・・制御回路、
Ｃ１・・・・・・検出　　　□−′制御信号、Ｃ２・・
・・・・状態入力制御信号、Ｃ３・・・・・・データ出
力制御信号。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart for explaining the operation of the above embodiment. 1...Common control circuit, 2...Interrupt detection circuit, 3...Status circuit, 4...
・Data output circuit, 5...Interface circuit, ■RO...Interrupt request signal, IRl...
...Interrupt generation signal, IR2...External interrupt signal, DO...Input/output data, Dl...
Output data, SO...Status information, Sl.
...Status input signal, CO...Control circuit,
C1...Detection □-' control signal, C2...
. . . Status input control signal, C3 . . . Data output control signal.

Claims

[Claims for Utility Model Registration] In response to the supply of the first signal, an external interrupt signal supplied from the outside is held, and in response to the supply of an external interrupt signal different from the held signal, an interrupt generation signal is generated. interrupt detection means for generating an interrupt; status input signal holding means for retaining a status input signal supplied from the outside in response to the supply of the second signal; and data supplied in response to the supply of the third signal. a data holding/sending means for holding and transmitting the data to the outside; and a data holding/sending means for performing initial setting in response to an initial setting command supplied from the central processing unit, generating the first signal, and responding to supply of the interrupt generation signal. generates the first signal, the second signal, and an interrupt request signal to the central processing unit, and transmits the held status input signal to the central processing unit in response to a status input command from the central processing unit. one signal generation and supply means that is supplied to a processing device, generates a third signal in response to the supply of an external interrupt processing end output command and data from the central processing unit, and supplies the data to the data holding means; An interface control device comprising: