User manual

Chapter 3 Signal Connections

PC-DIO-96/PnP User Manual 3-14 © National Instruments Corporation

Mode 1 Input Timing

The following figure illustrates the timing specifications for an input

transfer in mode 1.

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.

STB*

IBF

INTR

RD*

DATA