JPS569825A - Input-output channel unit - Google Patents

Input-output channel unit

Info

Publication number
JPS569825A
JPS569825A JP8494179A JP8494179A JPS569825A JP S569825 A JPS569825 A JP S569825A JP 8494179 A JP8494179 A JP 8494179A JP 8494179 A JP8494179 A JP 8494179A JP S569825 A JPS569825 A JP S569825A
Authority
JP
Japan
Prior art keywords
input
output
compensation value
skew compensation
signal
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
JP8494179A
Other languages
Japanese (ja)
Inventor
Tetsuji Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8494179A priority Critical patent/JPS569825A/en
Publication of JPS569825A publication Critical patent/JPS569825A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to connect input-output equipments differing in throughput by carrying out data transfer by decreasing a skew compensation value when the throughput of the input-output equipment is large while increasing it when small.
CONSTITUTION: For the purpose of coupling input-output equipments differing in device throughput, it is necessary to recognize whether a skew compensation value of 50nS or 100nS is suitable for a selected input-output equipment. For example, when the skew compensation value of 50nS is suitable for the selected input-output equipment, signal MarKo.in of level "1" is output from the corresponding input- output equipment synchronizing with signal Operational.in. At this point in time, since signal Address.out is sent out, the AND condition of AND circuit 44 of an input-output channel unit is realized and FF40 is set by its output. Namely, the input-output channel unit selects the skew compensation value of 50nS and controls the following data transfer. Similarly, when signal MarKo.in is "0", the skew compensation value of 100nS is selected.
COPYRIGHT: (C)1981,JPO&Japio
JP8494179A 1979-07-06 1979-07-06 Input-output channel unit Pending JPS569825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8494179A JPS569825A (en) 1979-07-06 1979-07-06 Input-output channel unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8494179A JPS569825A (en) 1979-07-06 1979-07-06 Input-output channel unit

Publications (1)

Publication Number Publication Date
JPS569825A true JPS569825A (en) 1981-01-31

Family

ID=13844671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8494179A Pending JPS569825A (en) 1979-07-06 1979-07-06 Input-output channel unit

Country Status (1)

Country Link
JP (1) JPS569825A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196333A (en) * 1981-05-26 1982-12-02 Toshiba Corp Interface controlling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196333A (en) * 1981-05-26 1982-12-02 Toshiba Corp Interface controlling system

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