JPS559283A - Interface circuit system for floppy disc for microcomputer - Google Patents

Interface circuit system for floppy disc for microcomputer

Info

Publication number
JPS559283A
JPS559283A JP8226778A JP8226778A JPS559283A JP S559283 A JPS559283 A JP S559283A JP 8226778 A JP8226778 A JP 8226778A JP 8226778 A JP8226778 A JP 8226778A JP S559283 A JPS559283 A JP S559283A
Authority
JP
Japan
Prior art keywords
circuit
flag
data
selector
floppy disc
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
JP8226778A
Other languages
Japanese (ja)
Inventor
Toshiki Yokomaku
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.)
MOTODA JIYUN
MOTODA JUN
Original Assignee
MOTODA JIYUN
MOTODA JUN
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 MOTODA JIYUN, MOTODA JUN filed Critical MOTODA JIYUN
Priority to JP8226778A priority Critical patent/JPS559283A/en
Publication of JPS559283A publication Critical patent/JPS559283A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the connection, by transferring the program of microcomputer continuoulsy in high speed without using the direct memory access controller and interruption processing circuit for the data in continuous selector.
CONSTITUTION: The parallel data from the CPU bus 4 is converted into serial data, and the serial data from the floppy driver interface circuit 1 into parallel data, the floppy disc control circuit 5 controlling the read/write head of the circuit 1 is provided, and the floppy disc interface circuit 3 performing program transfer through the use of the data transfer timing flag obtained from the circuit 5 is provided. The flag is counted with the counter 10 of the circuit 3, the selector flag is outputted by the count of one selector's share, the OR circuit 12 takes logical sum of flag of the counter 10 and the conditional flag from the circuit 5, the output of the circuit 12 is fed to CPU 1 to perform data transfer continuously to the computer in high speed.
COPYRIGHT: (C)1980,JPO&Japio
JP8226778A 1978-07-06 1978-07-06 Interface circuit system for floppy disc for microcomputer Pending JPS559283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8226778A JPS559283A (en) 1978-07-06 1978-07-06 Interface circuit system for floppy disc for microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8226778A JPS559283A (en) 1978-07-06 1978-07-06 Interface circuit system for floppy disc for microcomputer

Publications (1)

Publication Number Publication Date
JPS559283A true JPS559283A (en) 1980-01-23

Family

ID=13769697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8226778A Pending JPS559283A (en) 1978-07-06 1978-07-06 Interface circuit system for floppy disc for microcomputer

Country Status (1)

Country Link
JP (1) JPS559283A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103568A (en) * 1980-12-19 1982-06-28 Nec Corp Input/output controller
JPS5833770A (en) * 1981-08-24 1983-02-28 Sony Corp Program transfer method for digital data
JPS603048A (en) * 1983-06-20 1985-01-09 Matsushita Electric Ind Co Ltd Data transfer controller
JPS63257601A (en) * 1987-04-16 1988-10-25 北川精機株式会社 Slice veneer bonder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103568A (en) * 1980-12-19 1982-06-28 Nec Corp Input/output controller
JPS5833770A (en) * 1981-08-24 1983-02-28 Sony Corp Program transfer method for digital data
JPH0429102B2 (en) * 1981-08-24 1992-05-18
JPS603048A (en) * 1983-06-20 1985-01-09 Matsushita Electric Ind Co Ltd Data transfer controller
JPS63257601A (en) * 1987-04-16 1988-10-25 北川精機株式会社 Slice veneer bonder

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