TLE7250XLE

TLE7250XSJ

Functional Description

Data Sheet

10

Rev. 1.0, 2015-08-12

4.2

Modes of Operation

The TLE7250X supports two different modes of operation, receive-only mode and normal-operating mode while

the transceiver is supplied according to the specified functional range. The mode of operation is selected by the

RM input pin (see Figure 4).

Figure 4

Mode state diagram

4.2.1

Normal-operating Mode

In normal-operating mode the transmitter and the receiver of the HS CAN transceiver TLE7250X are active (see

Figure 1). The HS CAN transceiver sends the serial data stream on the TxD input pin to the CAN bus. The data

on the CAN bus is displayed at the RxD pin simultaneously. A logical “low” signal on the RM pin selects the normal-

operating mode, while the transceiver is supplied by

V

4.2.2

Receive-only Mode

In receive-only mode the normal-mode receiver is active and the transmitter is turned off. The TLE7250X can

receive data from the HS CAN bus, but cannot send any data to the HS CAN bus.

A logical “high” signal on the RM pin selects the receive-only mode, while the transceiver is supplied by

V

V

RM = 0

normal-operating

mode

RM = 1

receive-only mode

RM = 0

RM = 1