3. External Connection
34
DIO-32DM3-PE
Connection method to the external device
-Control I/O-
Connection to the control signal (EXT**)
In order to control bus mastering from outside, five signals are provided each for pattern I/O. Before
using the signals to be input as control signals please verify their pulse widths.
"0" at the end of a signal name indicates a pattern input signal and "1" a pattern output signal.
Table 3.5. Control signal
Signal name Direction
Usage
Signal name Direction
Usage
EXTCLK0
In
Pattern input clock
EXTCLK1
In
Pattern output clock
EXTSTART0
In
Pattern input start signal
EXTSTART1
In
Pattern output start signal
EXTSTOP0
In
Pattern input stop signal
EXTSTOP1
In
Pattern output stop signal
EXTREQ0
In
Pattern input REQ signal
EXTREQ1
Out
Pattern output REQ signal
EXTACK0
Out
Pattern input ACK signal
EXTACK1
In
Pattern output ACK signal
Detailed Control Input Signal Circuit
Control signals to be input include clock, start, stop, and handshake input signals.
Figure 3.4. Control signal input circuit
Board
External circuit
5V TTL IC or LVTTL IC
EXTCLK0/1
EXTSTART0/1
EXTSTOP0/1
EXREQ0
EXTACK1
Input pin
GND
GND
22Ω
3.3V
5.0V
10k
SN74LVT245B
or equivalent
Summary of Contents for DIO-32DM3-PE
Page 7: ...vi DIO 32DM3 PE ...
Page 17: ...1 Before Using the Product 10 DIO 32DM3 PE ...
Page 35: ...2 Setup 28 DIO 32DM3 PE ...
Page 47: ...3 External Connection 40 DIO 32DM3 PE ...
Page 57: ...5 About Software 50 DIO 32DM3 PE ...
Page 62: ......
