National Instruments PC-DIO-24/PnP - Manual (Page 36)

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