Understanding the Agilent E1330B Digital I/O Module
47
Chapter 4
PULSe
The PULSe handshake makes use of both the CTL and FLG lines. The input
and output operations are described below.
INPUT
OUTPUT
1
The Digital I/O module senses the
FLG line and waits for READY.
1
The Digital I/O module checks the
state of the FLG line (must be
READY).
2
The Digital I/O module sets the
I/O line HIGH.
2
The Digital I/O module sets the
I/O line LOW.
3
The Digital I/O module sets CTL
TRUE.
3
The Digital I/O module places the
data on the data lines.
4
The peripheral senses the CTL
line and sets the FLG line to
BUSY.
4
After waiting the programmed
delay time, Td, the Digital I/O
module sets CTL to TRUE.
5
The peripheral places the data on
the data lines and indicates valid
data by setting the FLG line to
READY.
5
The Digital I/O module then waits
another delay time, Td, and sets
the CTL line to FALSE.
6
The Digital I/O module senses the
FLG READY, returns CTL to
FALSE, and latches the input
data.
6
The peripheral senses the CTL
line change, sets the FLG line to
BUSY and latches the data.
7
When the data is entered, the
peripheral returns the FLG line to
READY.
Содержание E1330B
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Страница 25: ...Configuring the Agilent E1330B Digital I O Module 23 Chapter 2 Figure 2 6 J1 and J2 Connector Pinouts ...
Страница 32: ...30 Configuring the Agilent E1330B Digital I O Chapter 2 Notes ...
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