A Register-Based Input Algorithm - Keysight VXI Bus 75000 C Series User And Programming Manual

A Register-Based Input Algorithm

A Register-Based Input Algorithm
The following algorithm describes a procedure to program the registers to read a
byte of data from a peripheral. The algorithm follows a flag-driven input
procedure initiated by the computer. The computer polls the
Keysight E1458A Digital I/O Module to see if the data has been transmitted by
the peripheral by checking the Port Transfer/Control Register, bit 0 (referred to
as the acknowledge flag --- hence, the name flag-driven). Once the flag is TRUE
the computer can read new data from the port. The actual path followed by the
peripheral and the digital I/O module to set this bit is controlled by the
handshake mode you select.
Keysight E1458A 96-Channel Digital I/O Module User Guide
Keysight E1458A Register Information
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