Armadillo-9
hardware manual ver.1.02
5.3. CON2 (Serial Interface 2)
CON2 is an asynchronous (start-stop) serial interface. It is connected to UART2 on the CPU (EP9315).
Signal input/output level:
RS232C
Maximum data rate:
115.2kbps
Flow
control:
None
FIFO:
16Byte built-in for both send and receive
Table 5-3 CON2 Signal Assignment
No.
Signal Name
I/O
Function
1 -
2 -
3
RXD
I
Connects to UART2-RXD pin of EP9315
4
RTS
O
Connects to CON2 (6-pin) on the board (loopback)
5
TXD
O
Connects to UART2-TXD pin of EP9315
6
CTS
I
Connects to CON2 (4-pin) on the board (loopback)
7 -
8 -
9
GND
Power
Power supply (GND)
10
+3.3V
Power
Power supply (+3.3V)
5.4. CON3 (USB Interface)
CON3 is a USB serial interface. It is connected to USB0 on the CPU (EP9315).
Data Transfer Mode:
USB2.0 Full Speed (12Mbps), Low Speed (1.5Mbps)
Power Supply:
Voltage: +5V, Current: 500mA(max)
Connector Type:
Type A
Table 5-4 CON3 Signal Assignment
No.
Signal Name
I/O
Function
1
+5V
Power
Power supply (+5V, max. 500mA)
2
USB-
I/O
Minus side USB signal
3
USB+
I/O
Plus side USB signal
4
GND
Power
Power supply (GND)
9