National Instruments PCI-1200 Manual De Usuario

© National Instruments Corporation

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

Figure 3-18.  Mode 1 Timing Specifications for Output Transfers

T1

WRT* = 0 to INTR = 0

—

450

T2

WRT* = 1 to output

—

350

T3

WRT* = 1 to OBF* = 0

—

650

T4

ACK* = 0 to OBF* = 1

—

350

T5

ACK* pulse width

300

—

T6

ACK* = 1 to INTR = 1

—

350

All timing values are in nanoseconds.

WRT*

OBF*

INTR

ACK*

DATA

T1

T2

T3

T4

T5

T6