Kontron SMARC Evaluation Carrier Manual de usuario descargar pdf (Pagina 21)

User’s Guide

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5.4

CAN Bus

5.4.1

J15 – CAN0

Connector: Molex 53261-0471, 1.25mm pitch R/A Header.

Pin Number

Signal

Notes

CAN 0 Dominant Low

CAN0 Dominant High

5V power

Ground

5.4.2

J16 – CAN1

Connector: Molex 53261-0471, 1.25mm pitch R/A Header.

Pin Number

Signal

Notes

CAN1 Dominant Low

CAN1 Dominant High

5V power

Ground

5.5

Asynchronous Serial Ports

5.5.1

General

The SMARC Evaluation Carrier supports the four serial ports defined in the SMARC specification. The Evaluation

Carrier has EIA RS232 compliant signal levels and polarities. Per the SMARC specification, two of the four ports have

RTS

CTS handshaking, and two have TX and RX data only, without handshaking.

The Evaluation Carrier runs SER0 and SER1 through one transceiver, and SER2 and SER3 through a 2

transceiver. There

are provisions that allow I/O Mezzanine card circuitry to disable the SER0/1 transceiver, and

or disable the SER2/3

transceiver. These provisions exist so that users may optionally take over SER0/1 or SER2/3 and use them in alternative

ways on the I/O Mezzanine (to interface to a peripheral such as a GPS module or an RS485 transceiver).

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Kontron SMARC Evaluation Carrier Manual de usuario Pagina 21