Spi Bus; Lpc Super I/O Device; Serial Ports (Com); Table 23 Serial Ports (Connectors X24/X25) Pinout Description - Congatec conga-IA5 User Manual

5.4.3

SPI Bus

The SPI signals are connected to the onboard SPI flash and also to the feature connector (X35). The SPI signals on the feature connector
provides the ability to boot the conga-IA5 from external flash. This however requires a customized adapter for triggering the BIOS_DISABLE#
signal (pin 46) of the feature connector.
Note
The congatec customized adapter for the feature connector is for internal use only.
5.5

LPC Super I/O Device

The conga-IA5 has an onboard Super I/O controller that provides additional interfaces such as two serial interfaces, optional ccTALK, GPOs,
4-wire CPU and system fans. The Super I/O controller is connected to the SoC's LPC Bus.
5.5.1

Serial Ports (COM)

The Super I/O controller on the conga-IA5 provides two UART interfaces (COM 0 and 1). One UART fully featuring RS-232 UART and the other
UART featuring RS232 (Rx and Tx only), RS422, and RS485. The COM 1 interface can be optionally used as ccTALK compliant interface. The
COM ports can drive up to 115 kbit/s at a maximum cable length of 15 m.
Table 23 Serial Ports (Connectors X24/X25) Pinout 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
Connector Type
X24, X25: 2.54mm, 2x5 pin header
Note
The conga-IA5 offers an optional ccTALK interface. This interface uses transmit and receive signals of COM 1. If this option is implemented,
COM 1 will not be available. congatec offers cables for the COM ports (see section 1.2.2 "Optional Accessories"). For more information,
contact congatec technical solution department.
Copyright © 2017 congatec AG
Pin Signal Description
6 DSR Data Set Ready
7 RTS Request to Send
8 CTS Clear to Send
9 RI Ring Indicator
10 N.C Not connected
COM 0/1 - Connectors X24/X25
Pin 2
Pin 1
IA50m01 31/59