Sierra 200 Manual Do Utilizador
17
Con_3 - In-Circuit Progamming Connector
The in-circuit programming connector, Con_3, is used to download new versions of
firmware to the main CPU. This is a 10 pin header connector designed to be used for in-
circuit programming with an ME Labs in-circuit programmer.
firmware to the main CPU. This is a 10 pin header connector designed to be used for in-
circuit programming with an ME Labs in-circuit programmer.
General Purpose I/O Connector
The GPIO connector provides 24 I/O signals that can be used for a variety of purposes.
The signals inlcude 8 TTL level digital inputs with internal logic pullups, 8 open
collector buffered outputs, 8 analog to digital converter inputs and ground.
All 24 I/O signals are protected from over voltage conditions using transient voltage
suppression devices.
The signals inlcude 8 TTL level digital inputs with internal logic pullups, 8 open
collector buffered outputs, 8 analog to digital converter inputs and ground.
All 24 I/O signals are protected from over voltage conditions using transient voltage
suppression devices.
Pin
Use
1 Analog
input
2
Analog input
3
Analog input
4
Analog input
5 Digital
output
6
Digital output
7
Digital output
8
Digital output
9 Digital
input
10
Digital input
11
Digital input
12
Digital input
13
Digital input
Pin
Use
14
Analog input
15
Analog input
16
Analog input
17
Analog input
18
Digital output
19
Digital output
20
Digital output
21
Digital output
22
Digital input
23
Digital input
24
Digital input
25 Ground
Digital inputs are pulled up with a 10k resistor and must be either ground or +5 VDC.
Analog inputs must be between 0 and +5V.
Digital outputs are buffered open collector outputs that can sink up to 500 ma.