JPS5498135A - Input/output control system - Google Patents

Input/output control system

Info

Publication number
JPS5498135A
JPS5498135A JP430478A JP430478A JPS5498135A JP S5498135 A JPS5498135 A JP S5498135A JP 430478 A JP430478 A JP 430478A JP 430478 A JP430478 A JP 430478A JP S5498135 A JPS5498135 A JP S5498135A
Authority
JP
Japan
Prior art keywords
control
read
write
nop
flg
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
JP430478A
Other languages
Japanese (ja)
Inventor
Yukiro Shiraokawa
Tsutomu Sakamoto
Keizo Aoyanagi
Michio Arai
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 JP430478A priority Critical patent/JPS5498135A/en
Publication of JPS5498135A publication Critical patent/JPS5498135A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To separate an input data field and a header field from each other and ignore the header part by setting a prescribed bit of the chanel control word in the channel control block which has control information for a peripheral device.
CONSTITUTION: When flag (FLG) A is set, control word CCW in control block CCB is decoded to decide a processing mode. If the mode is not NOP, NULL, DMT and INIT, the control is transferred to READ or WRITE for a device. The control is optionally transferred to READ and WRITE after processings such as NOP. At this time, when FLG B is set, READ or WRITE is decided. At this time, when READ is decided and the 10th bit of CCW is set, X'FF' at the head of input data is ignored.
COPYRIGHT: (C)1979,JPO&Japio
JP430478A 1978-01-20 1978-01-20 Input/output control system Pending JPS5498135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP430478A JPS5498135A (en) 1978-01-20 1978-01-20 Input/output control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP430478A JPS5498135A (en) 1978-01-20 1978-01-20 Input/output control system

Publications (1)

Publication Number Publication Date
JPS5498135A true JPS5498135A (en) 1979-08-02

Family

ID=11580756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP430478A Pending JPS5498135A (en) 1978-01-20 1978-01-20 Input/output control system

Country Status (1)

Country Link
JP (1) JPS5498135A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137748A (en) * 1996-08-26 2000-10-24 Citizen Watch Co., Ltd. Electronic timepiece equipped with calendar function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137748A (en) * 1996-08-26 2000-10-24 Citizen Watch Co., Ltd. Electronic timepiece equipped with calendar function

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