410-353 Digilent

1300 Henley Court Pullman, WA 99163 509.334.6306 www.store. digilent.com Pmod CAN Reference Manual Revised August 31, 2017 This manual applies to the Pmod CAN rev. B Overview The Digilent Pmod CAN (Revision B) is a CAN 2.0B controller with an integrated transceiver. The embedded Microchip MCP25625 chip connects directly to the physical CAN bus and meets automotive requirements for high-speed (1 Mb/s), low quiescent current, electromagnetic compatibility, and electrostatic discharge. Standalone CAN 2.0B controller with an integrated CAN transceiver Compatible with ISO-11898-1, ISO-11898-2, and ISO-11898-5 Suitable for automotive applications Up to 1 Mb/s operation Up to 10 MHz SPI clock speed 3 Transmit buffers with prioritization and abort feature 2 Receive buffers 6 Filters and 2 masks with optional filtering on the first two data bytes Interrupt output pin Standard DB9 connector for a secure connection Suitable for 12 V and 24 V systems Small PCB size for flexible designs 1.4 in x 1.8 in (3.6 cm x 4.6 cm) 12-pin Pmod connector with SPI interface Follows the Digilent Pmod Interface The Pmod CAN. Specification 1.1.0 1 Specifications Parameter Min Typical Max Units Power Supply Voltage (Vcc) 2.7 5.5 V High-Level Input Voltage (RxCAN) 2 - Vcc+1 V Low-Level Input Voltage (RxCAN) -0.3 - 0.15*Vcc V High-Level Output Voltage (TxCAN) Vcc-0.7 - - V Low-Level Output Voltage (TxCAN) - - 0.6 V Bit Frequency 14.4 - 1000 kHz Copyright Digilent, Inc. All rights reserved. SKU: 410-353 Page 1 of 8 Other product and company names mentioned may be trademarks of their respective owners. Pmod CAN Reference Manual Transmitter Min Typical Max Units Recessive Bus Output Voltage 2.0 0.5 Vcc 3.0 V (CANH & CANL) Dominant Output Voltage (CANH) 2.75 3.50 4.50 V Dominant Output Voltage (CANL) 0.50 1.50 2.25 V Dominant Differential Output 1.5 2.0 3.0 V Voltage Receiver Min Typical Max Units Recessive Differential Input -1.0 - +0.5 V Voltage (normal mode) Dominant Differential Input 0.9 - Vcc Voltage (normal mode) Parameter Value Units Standby Current 10 A 1.1 Pinout Table Diagram Header J1 Pin Signal Description 1 N/C Not Connected 2 CANL CAN Low-Level Voltage I/O 3 GND Power Supply Ground 4 N/C Not Connected 5 N/C Not Connected 6 GND Power Supply Ground 7 CANH CAN High-Level Voltage I/O 8 N/C Not Connected 9 N/C Not Connected S1 GND Power Supply Ground S2 GND Power Supply Ground Header J2 Pin Signal Description 1 CS Chip Select 2 MOSI Master-Out-Slave-In 3 MISO Master-In-Slave-Out 4 SCK Serial Clock 5 GND Power Supply Ground 6 VCC Power Supply (3.3V/5V) 7 INT Interrupt 8 RST Reset 9 Rx0BF Receive Buffer 0 Full Interrupt 10 Rx1BF Receive Buffer 0 Full Interrupt 11 GND Power Supply Ground 12 VCC Power Supply (3.3V/5V) Copyright Digilent, Inc. All rights reserved. Page 2 of 8 Other product and company names mentioned may be trademarks of their respective owners.