Mode 2 Bidirectional Timing; Figure 4-15. Timing Specifications For Mode 2 Bidirectional Transfer - National Instruments DAQ PCI-6023E User Manual

Mode 2 Bidirectional Timing

WR *
OBF *
INTR
ACK *
STB *
IBF
RD *
DATA
Name
T1
WR* = 1 to OBF* = 0
T2
Data before STB* = 1
T3
STB* Pulse Width
T4
STB* = 0 to IBF = 1
T5
Data after STB* = 1
T6
ACK* = 0 to OBF* = 1
T7
ACK* Pulse Width
T8
ACK* = 0 to Output
T9
ACK* = 1 to Output Float
T10
RD* = 1 to IBF = 0
All timing values are in nanoseconds.
© National Instruments Corporation
Timing specifications for a bidirectional transfer in mode 2 are as follows:
T1
T3
T4
T2
Description

Figure 4-15. Timing Specifications for Mode 2 Bidirectional Transfer

T6
T7
T5 T8
Minimum
4-29
Chapter 4 Signal Connections
T10
T9
Maximum
— 150
20 —
100 —
— 150
50 —
— 150
100 —
— 150
20 250
— 150
PCI-6023E/6024E/6025E User Manual