Справочник Пользователя для National Instruments PCI-DIO-96

Chapter 3

Signal Connections

PCI-DIO-96 User Manual

3-12

 National Instruments Corporation

The timing specifications for bidirectional transfers in mode 2 are as 
follows:

Figure 3-6.  Timing Specifications for Mode 2 Bidirectional Transfer

T1

WR* = 1 to OBF* = 0

—

150

T2

Data before STB* = 1

20

—

T3

STB* Pulse Width

100

—

T4

STB* = 0 to IBF = 1

—

150

T5

Data after STB* = 1

50

—

T6

ACK* = 0 to OBF* = 1

—

150

T7

ACK* Pulse Width

100

—

T8

ACK* = 0 to Output

—

150

T9

ACK* = 1 to Output Float

20

250

T10

RD* = 1 to IBF = 0

—

150

All timing values are in nanoseconds.

T1

T6

T7

T3

T4

T10

T2

T5

T8

T9

WR *

OBF *

INTR

ACK *

STB *

IBF

RD *

DATA