UM0442 datasheet(16/33 Pages) STMICROELECTRONICS

16 / 33 page

Hardware configuration and functionality

UM0442

16/33

Figure 13.

A female strip-line is used as LCD socket

4.14

CAN connector

The board is equipped with a standard DB9 male connector to enhance networking

capabilities, especially in industrial and factory automation environments.

The physical layer of the CAN protocol is implemented through the L9616 transceiver. It

allows the peripheral to reach standard communication speeds (up to 250 Kbps and up to 1

Mbps) which can be done by setting the selector S5 (located close to the CAN connector,

see Figure 2) as appropriate. Taking the middle point of this selector as a reference, and

closing this one with pin number 3 (0 in the board silkscreen), the device runs at 1 Mbps as

maximum speed. Closing the middle point of S5 with pin number 1 in the layout (1 in the

board silkscreen), the communication speed is limited to 250 Kbps.

Independently of the speed you select, you must close jumper JP12 to connect the

termination resistor, in order to close the communication line on the STR750FV2 side.

Jumpers JP10 and JP11 also must be closed to allow communication. They connect the Tx

and Rx pins of the transceiver with pins 64 and 63 of the microcontroller respectively, linking

the peripheral to the physical layer of the communication protocol.

RnotW

200

218

7DB0

210

8DB1

211

9DB2

212

DB3

213

DB4

214

DB5

215

DB6

216

DB7

217

CS1

201

CS2

202

notRST

Vout

Table 8.

LCD socket pin description (continued)

Pin no

Name

STR750FV2 pin

UM0442 Datasheet(PDF) 16 Page - STMicroelectronics

UM0442 Datasheet(HTML) 16 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

Datasheet Download

Link URL