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Chapter 3 Signal Connections
©
National Instruments Corporation 3-13 PC-DIO-24/PnP User Manual
Mode 1 Output Timing
The following figure illustrates the timing specifications for an output
transfer in mode 1.
Figure 3-6.
Mode 1 Timing Specification for Output Transfers
Name Description Minimum Maximum
T1
WR* = 0 to INTR = 0
—250
T2
WR* = 1 to output
—200
T3
WR* = 1 to OBF* = 0
—150
T4
ACK* = 0 to OBF* = 1
—150
T5
ACK* pulse width
100 —
T6
ACK* = 1 to INTR = 1
—150
All timing values are in nanoseconds.
T2
T3
WR*
OBF*
INTR
DATA
T4
T6
T5
ACK*
T1