Mode 1 Input Timing; Figure 4-38. Mode 1 Input Timing - National Instruments AT-MIO/AI E Series User Manual

National Instruments Corporation

Mode 1 Input Timing

The following are the timing specifications for an input transfer in
Mode 1:
STB *
IBF
INTR
RD *
DATA
Name Description
T1 STB* Pulse Width
T2 STB* = 0 to IBF = 1
T3 Data before STB* = 1
T4 STB* = 1 to INTR = 1
T5 Data after STB* = 1
T6 RD* = 0 to INTR = 0
T7 RD* = 1 to IBF = 0
All timing values are in nanoseconds.
T1
T2 T4
T3 T5

Figure 4-38. Mode 1 Input Timing

4-55
Chapter 4 Signal Connections
T7
T6
Minimum Maximum
100 –
– 150
20 –
– 150
50 –
– 200
– 150
AT-MIO/AI E Series User Manual