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Chapter 3

Signal Connections

PCI-DIO-96 User Manual

3-10

National Instruments Corporation

Mode 1 Input Timing

The timing specifications for an input transfer in mode 1 are as follows:

Figure 3-4. Timing Specifications for Mode 1 Input Transfer

Name

Description

Minimum

Maximum

STB* Pulse Width

100

—

STB* = 0 to IBF = 1

—

150

Data before STB* = 1

—

STB* = 1 to INTR = 1

—

150

Data after STB* = 1

—

RD* = 0 to INTR = 0

—

200

RD* = 1 to IBF = 0

—

150

All timing values are in nanoseconds.

DATA

RD *

INTR

IBF

STB *