JPH0167847U

JPH0167847U -

Info

Publication number: JPH0167847U
Application number: JP1987164196U
Authority: JP
Priority date: 1987-10-26
Filing date: 1987-10-26
Publication date: 1989-05-01

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例であるバスドライ
バ出力衝突検出装置の構成を示す図である。第２
図はバス構成の装置システムの一例を示す図であ
る。図において、１は共通バス、１０は出力衝突検
出部、１１はバスモニタ、１２は比較判定回路、
１３は衝突表示器、２０はバスドライバ、ＬＣ１
，ＬＣ２は共通バス１に接続される回路装置であ
る。なお、図中、同一符号は同一または相当部分
を示す。 FIG. 1 is a diagram showing the configuration of a bus driver output collision detection device which is an embodiment of this invention. Second
The figure is a diagram showing an example of a device system having a bus configuration. In the figure, 1 is a common bus, 10 is an output collision detection section, 11 is a bus monitor, 12 is a comparison judgment circuit,
13 is a collision indicator, 20 is a bus driver, LC1
, LC2 are circuit devices connected to the common bus 1. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) Each of the plurality of circuit devices is used to detect a data collision on the common bus that occurs in a device system in which a plurality of circuit devices are connected to a common bus. , wherein each of the circuit devices includes at least a data output means, and when the data output means is in operation, the signal to be outputted by the data output means and the signal on the common bus are connected to each other. A bus driver output collision detection device, comprising: means for comparing; and means for determining whether a data collision has occurred on the common bus in response to the output of the comparison means. (2) The bus driver output collision detection device according to claim 1, further comprising means for indicating that an output collision has occurred on the common bus in response to the output of the determining means.