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Improved Poll Capture for I/O Channel

IP.com Disclosure Number: IPCOM000050601D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10

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Related People

Bhansali, MM Cannon, JW Chisholm, DR Farrell, RH [+details]


The time required to perform a polling sequence for I/O devices connected to an IBM Series/1 processor I/O channel bus is substantially reduced by reducing the time period T between the issuance of the poll identification (ID) code and the issuance of the poll tag signal by the processor. This increases the I/O data rate and reduces the interrupt service time.