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公开(公告)号:DE3068016D1
公开(公告)日:1984-07-05
申请号:DE3068016
申请日:1980-06-24
Applicant: IBM
Inventor: JACKSON TIMOTHY , MALKEMES CHARLES DAVID , ZIPOY WILLIAM LEWIS
Abstract: There is disclosed herein printer control logic for controlling a matrix printer. The control logic includes an interruptable microprocessor, together with associated memory. Additionally the control logic includes a programmable timer which provides a signal a determined time after being programmed. The control logic responds to print emitter signals manifesting an incremental movement of the print head by interrupting the microprocessor. The microprocessor then programs the timer to provide signals after a programmed delay time to again interrupt the microprocessor. The microprocessor then provides signals causing the operation of the print elements on print head.
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公开(公告)号:CA1128364A
公开(公告)日:1982-07-27
申请号:CA353162
申请日:1980-06-02
Applicant: IBM
Inventor: JACKSON TIMOTHY , MALKEMES CHARLES D , ZIPOY WILLIAM L
Abstract: There is disclosed herein printer control logic for controlling a matrix printer. The control logic includes an interruptable microprocessor, together with associated memory. Additionally the control logic includes a programmable timer which provides a signal a determined time after being programmed. The control logic responds to print emitter signals manifesting an incremental movement of the print head by interrupting the microprocessor. The microprocessor then programs the timer to provide signals after a programmed delay time to again interrupt the microprocessor. The microprocessor then provides signals causing the operation of the print elements on print head. BC9-79-024
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公开(公告)号:IT8022656D0
公开(公告)日:1980-06-09
申请号:IT2265680
申请日:1980-06-09
Applicant: IBM
Inventor: MONROE DINWIDDIE JOHN , JOE FREEMAN BODDY , JACKSON TIMOTHY , LEWIS ZIPOY WILLIAM
IPC: G06F20060101 , G06F
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公开(公告)号:DE3071822D1
公开(公告)日:1986-12-11
申请号:DE3071822
申请日:1980-06-24
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , FREEMAN BOBBY JOE , JACKSON TIMOTHY , ZIPOY WILLIAM LEWIS
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公开(公告)号:CA1148265A
公开(公告)日:1983-06-14
申请号:CA352373
申请日:1980-05-21
Applicant: IBM
Inventor: DINWIDDIE JOHN M JR , FREEMAN BOBBY J , JACKSON TIMOTHY , ZIPOY WILLIAM L
Abstract: HIGH PERFORMANCE I/O CONTROLLER FOR TRANSFERRING DATA BETWEEN A HOST PROCESSOR AND MULTIPLE I/O UNITS An I/O controller for transferring data between a host processor and an I/O unit is disclosed comprising: a random access storage unit located in the I/O controller for storing data; first selectively operable data transfer circuitry for providing a data transfer path between the host processor and the controller storage unit; second selectively operable data transfer circuitry for providing a data transfer path between the controller storage unit and the I/O unit; first storage accessing circuitry for supplying addresses to the controller storage unit and selection signals to the second data transfer circuitry for enabling the transfer of data between the controller storage unit and the I/O unit; second storage accessing circuitry for supplying host processor main storage addresses to the host processor, controller storage addresses to the controller storage unit and selection signals to the first data transfer circuitry for enabling the transfer of data between the host processor main storage unit and the controller storage unit in a first data transfer mode; third storage accessing circuitry responsive to addresses received from the host processor for supplying addresses to the controller storage unit and selection signals to the first data transfer circuitry for enabling the transfer of data between the host processor and the controller storage unit in a second data transfer mode; and interleaving control circuitry for enabling the second mode data transfers to be interleaved with the first mode data transfers.
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公开(公告)号:IT1149980B
公开(公告)日:1986-12-10
申请号:IT2295180
申请日:1980-06-23
Applicant: IBM
Inventor: JACKSON TIMOTHY , MALKEMES CHARLES DAVID , ZIPOY WILLIAM LEWIS
Abstract: There is disclosed herein printer control logic for controlling a matrix printer. The control logic includes an interruptable microprocessor, together with associated memory. Additionally the control logic includes a programmable timer which provides a signal a determined time after being programmed. The control logic responds to print emitter signals manifesting an incremental movement of the print head by interrupting the microprocessor. The microprocessor then programs the timer to provide signals after a programmed delay time to again interrupt the microprocessor. The microprocessor then provides signals causing the operation of the print elements on print head.
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公开(公告)号:IT1160420B
公开(公告)日:1987-03-11
申请号:IT2265680
申请日:1980-06-09
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , FREEMAN BODDY JOE , JACKSON TIMOTHY , ZIPOY WILLIAM LEWIS
IPC: G06F20060101 , G06F
Abstract: The input/output controller includes a microprocessor for supervising data transfer between a host processor and the controller and a microprocessor I/O bus coupled to I/O units. A storage unit is located in the I/O controller for providing a data transfer interface between the microprocessor I/O bus and the I/O channel bus of the host processor. First storage accessing circuitry including the microprocessor and chip select decoder provides a data transfer path between a dual-port random access storage mechanism and an I/O unit. Second storage accessing circuitry including a direct memory access controller unit and chip select decoder supplies host processor main storage addresses to the host processor and controller storage addresses to the storage mechanism. These addresses enable transfer of data between the host processor main storage unit and the controller storage mechanism in a first data transfer mode e.g. a cycle steal mode.. More efficient and flexible data transfer are achieved where several I/O units are connected to the I/O controller. So that a high performance I/O controller is provided which is flexible and versatile in terms of the kinds and numbers of tasks it can perform and I/O units it can handle.
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公开(公告)号:AU529183B2
公开(公告)日:1983-05-26
申请号:AU5948480
申请日:1980-06-20
Applicant: IBM
Inventor: JACKSON TIMOTHY , MALKEMES CHARLES DAVID , ZIPOY WILLIAM LEWIS
Abstract: There is disclosed herein printer control logic for controlling a matrix printer. The control logic includes an interruptable microprocessor, together with associated memory. Additionally the control logic includes a programmable timer which provides a signal a determined time after being programmed. The control logic responds to print emitter signals manifesting an incremental movement of the print head by interrupting the microprocessor. The microprocessor then programs the timer to provide signals after a programmed delay time to again interrupt the microprocessor. The microprocessor then provides signals causing the operation of the print elements on print head.
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公开(公告)号:AU537478B2
公开(公告)日:1984-06-28
申请号:AU5908080
申请日:1980-06-05
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , FREEMAN BOBBY JOE , JACKSON TIMOTHY , ZIPOY WILLIAM LEWIS
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