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IBM System/7 Functional Characteristics - All about the IBM 1130 ...

IBM System/7 Functional Characteristics - All about the IBM 1130 ...

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I I 11,1■111PIO instruction Function ModifierDevice addressSubaddressZerosDigital output control (X = group)Immediate write 0 0 1Write digital output groupregister (X=group) 0 0 0 0 1 1 X X 0 0Write digital outputholding register 0 0 0 1 1 1 0 0 0 0Set digital output groupregister 0 0 1 0 1 1 X X 0 0Immediate read 0 1 0Read digital output groupregister (X=group) 0 0 0 0 1 1 X X 0 0Read digital outputholding register 0 0 0 1 1 1 0 0 0 0Analog output control (X = point)Immediate write 0 0 1Write analog outputregister (X=point) 0 0 0 0 1 0 1 X 0 0Write analog outputholding register 0 0 0 1 1 0 1 0 0 0Set analog outputregister 0 0 1 0 1 0 1 X 0 0Immediate read 0 1 0Read analog outputregister 0 0 0 0 1 0 1 X 0 0Read analog outputholding register 0 0 0 1 1 0 1 0 0 02790 ControlImmediate write 0 0 1Write address 0 0 0 0 1 0 0 0 0 0Write control and data 0 0 0 1Set diagnostic mode 0 0 1 0Set input buffer control 0 0 1 1Immediate read 0 1 0Read address 0 0 0 0 1 0 0 0 0 0Read control and data 0 0 0 1Read ISW 0 0 1 1Summary of I/O Commands B-3

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