Appendix B: General I/O Description; Digital I/O's; Gpio Connector - Newport ESP302 Startup Manual

ESP302 Controller
6.0

Appendix B: General I/O Description

A1270B1 - EDH0411En1021 – 02/20
This chapter briefly describes all ESP302 signal types and details each of the ESP302
connector interfaces.
6.1

Digital I/O's

All digital I/Os are TTL compatible:
• All digital I/Os are not isolated, but are referenced to electrical ground (GND).
• Input levels must be between 0 V and +5 V.
• Output levels are +5 V.
All digital I/Os are refreshed asynchronously on user requests. Therefore, digital inputs
or outputs have no refresh rate.
Typical delay is a few μs due to priorities made to other functions.
For firmware compatibility reasons, I/Os are grouped in two busses (GPIO1 and
GPIO2), each bus can be configured independently in input or output mode (default
input).
6.1.1

GPIO Connector

Mating connector: Male SUB-D26HD with UNC4/40 lockers.
Pin #
1 +5 V (fused: max 100 mA)
2 GPIO1.DI1 or GPIO1.DO1
3 GPIO1.DI2 or GPIO1.DO2
4
GPIO1.DI3 or GPIO1.DO3
5
GPIO1.DI4 or GPIO1.DO4
6 GPIO1.DI5 or GPIO1.DO5
7 GPIO1.DI6 or GPIO1.DO6
8 GPIO1.DI7 or GPIO1.DO7
9
GPIO1.DI8 or GPIO1.DO8
10
GND
11 GND
12 GND
13 GND
GPIO
NOTE
GPIO
Function Pin #
14
15
16
17
18
19
20
21
22
23
24
25
26
Figure 17: GPIO connector.
32
Start-Up Manual
Function
GND
GND
GND
GND
GND
GPIO2.DI1 or GPIO2.DO1
GPIO2.DI2 or GPIO2.DO2
GPIO2.DI3 or GPIO2.DO3
GPIO2.DI4 or GPIO2.DO4
GPIO2.DI5 or GPIO2.DO5
GPIO2.DI6 or GPIO2.DO6
GPIO2.DI7 or GPIO2.DO7
GPIO2.DI8 or GPIO2.DO8