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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