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Chapter 4 Signal Connections
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National Instruments Corporation 4-27 PCI-6023E/6024E/6025E User Manual
Mode 1 Input Timing
Timing specifications for an input transfer in mode 1 are as follows:
Figure 4-13.
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
PCI.book Page 27 Wednesday, September 16, 1998 9:09 AM