National Instruments PCI-1200 - Manual (Page 50)

Chapter 3 Signal Connections
PCI-1200 User Manual 3-28 © National Instruments Corporation
Mode 1 Input Timing
The timing specifications for an input transfer in mode 1 are as follows:
Figure 3-17. Mode 1 Timing Specifications for Input Transfers
Name Description Minimum Maximum
T1 STB* pulse width 500 —
T2 STB* = 0 to IBF = 1 — 300
T3 Data before STB* = 1 0 —
T4 STB* = 1 to INTR = 1 — 300
T5 Data after STB* = 1 180 —
T6 RD* = 0 to INTR = 0 — 400
T7 RD* = 1 to IBF = 0 — 300
All timing values are in nanoseconds.
DATA
RD *
INTR
IBF
STB *
T1
T2 T4
T7
T6
T3 T5