Atmel AT89STK-06 CAN, SPI, Figure, Figure, Figure 2-8 . CAN LEDs

Hardware Description

2.4.2 CAN The microcontroller is a microcontroller with an on-chip full-CAN controller.

The AT89STK-06 board is supplied with an Atmel CAN transceiver (ATA6660). A female DB9 connector assumes the CAN bus connections.

Figure 2-7 .CAN DB9 Connections

					pin 2	CAN-L
CAN DB9 front view					pin 7	CAN-H
						Gnd
1	2	3	4	5	pin 3
					pin 6	Gnd
	6	7	8	9
						CAN-SHLD
					pin 5
						(Can be set to Gnd)

If a network termination is needed, JP3 switch inserts a 120Ω resistor between CAN-H and CAN-L.

A red LED indicates a TxCAN traffic, a green one indicates a RxCAN traffic.

Figure 2-8 . CAN LEDs

											Can Res Jumper
											(Here Open)
			Red Rx LED								Green Tx LED
2.4.3	SPI	The AT89C51CC03 in PLCC52 is a microcontroller with an on-chip full duplex SPI
		interface, master or slave.
		A 6-pin male connector assumes the SPI bus connections. The SPI 6-pin connector also
		provides to the user Vcc and Gnd.
		Figure 2-9 .SPI 6-pin Connections
										Vcc
		SPI Connector front view							pin 1
		1		2	3	4	5	6	pin 2	SS
									pin 3	MISO
										SCK
									pin 4
										MOSI
									pin 5
										Gnd
									pin 6

2-6 AT89STK-06 Demo Board Software Demo Guide

4339C–CAN–07/05