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5.11
I²C Bus
The congatec board controller provides I²C signals. These signals are available in different locations on the conga-IC170, including the feature
connector (X38) described in section 6.13 of this document.
5.12
LPC Super I/O Device
The conga-IC170 has an onboard Super I/O controller. The controller is connected to the SoC’s LPC bus and provides additional interfaces such
as two serial interfaces, optional ccTALK, GPOs, 4-wire CPU and system fans. .
5.12.1
GPIOs
The conga-IC170 SBC provides eight General Purpose Inputs via the congatec board controller and eight General Purpose Outputs via the
onboard Super I/O. The GPIO signals are routed to the feature connector (X38) described in section 6.13 “Feature Connector”.
5.12.2
Serial Ports (COM)
The Super I/O controller on the conga-IC170 provides two fully featured RS-232 compliant UART interfaces (COM 1 and 2). The COM ports
support data rates up to 250 kbps with worst-case loads of 3kΩ, in parallel with 1nF.
Table 35 Serial Ports (Connectors X34/X37) Pinout Description
Pin Signal
Description
Pin Signal
Description
1
DCD
Data Carrier Detect
2
RXD
Received Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request to Send
8
CTS
Clear to Send
9
RI
Ring Indicator
10
N.C
Not connected
Connector Type
X34,X37: 2.54 mm, 2x5-pin headers
Note
The conga-IC170 offers an optional ccTALK interface. This interface uses transmit and receive signals of COM 2. If this option is implemented,
COM 2 will not be available.
COM 1 & 2 - Connectors X34/X37
Pin 1
Pin 2
