National Instruments 6508 PCI-DIO-96 - Manual (Page 30)

Chapter 3 Signal Connections
PCI-DIO-96 User Manual 3-10 © National Instruments Corporation
Mode 1 Input Timing
The timing specifications for an input transfer in mode 1 are as follows:
Figure 3-4. Timing Specifications for Mode 1 Input Transfer
Name Description Minimum Maximum
T1 STB* Pulse Width 100 —
T2 STB* = 0 to IBF = 1 — 150
T3 Data before STB* = 1 20 —
T4 STB* = 1 to INTR = 1 — 150
T5 Data after STB* = 1 50 —
T6 RD* = 0 to INTR = 0 — 200
T7 RD* = 1 to IBF = 0 — 150
All timing values are in nanoseconds.
DATA
RD *
INTR
IBF
STB *
T1
T2 T4
T7
T6
T3 T5