JPS55123791A - Printer control system - Google Patents

Printer control system

Info

Publication number
JPS55123791A
JPS55123791A JP2997779A JP2997779A JPS55123791A JP S55123791 A JPS55123791 A JP S55123791A JP 2997779 A JP2997779 A JP 2997779A JP 2997779 A JP2997779 A JP 2997779A JP S55123791 A JPS55123791 A JP S55123791A
Authority
JP
Japan
Prior art keywords
register
data
bus
read
pulse motor
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
JP2997779A
Other languages
Japanese (ja)
Inventor
Hideyuki Takahashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2997779A priority Critical patent/JPS55123791A/en
Publication of JPS55123791A publication Critical patent/JPS55123791A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To reduce a firmwave step by reading the exciting phase of a pulse motor for form feed control by firmware.
CONSTITUTION: Excitation of a pulse motor for form feed control is given from the external through data bus 22 and is latched in register 23 by write signal 23. Dara latched in register 21 becomes a form feed pulse motor excitation driving signal by driver 25. In case of switching of this excitation, contents of register 21 are read from bus driver 27 through bus 22 by read signal 28, and simultaneously, a micro processor performs an arbittary operation to update data. That is, when data of register 21 is updated, data is read on a basis of the read command of the micro processor, and updated contents are operated in the micro processor on a basis of this data, and in respect to the operation result, rewrite to register 21 through bus 22 is performed.
COPYRIGHT: (C)1980,JPO&Japio
JP2997779A 1979-03-16 1979-03-16 Printer control system Pending JPS55123791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2997779A JPS55123791A (en) 1979-03-16 1979-03-16 Printer control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2997779A JPS55123791A (en) 1979-03-16 1979-03-16 Printer control system

Publications (1)

Publication Number Publication Date
JPS55123791A true JPS55123791A (en) 1980-09-24

Family

ID=12291011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2997779A Pending JPS55123791A (en) 1979-03-16 1979-03-16 Printer control system

Country Status (1)

Country Link
JP (1) JPS55123791A (en)

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