Data Sheet

11

Rev. 1.0

2017-08-09

HS CAN Transceiver

High Speed CAN Transceiver

Changing the mode of operation

6

Changing the mode of operation

6.1

Power-up and power-down

After powering up, the device enters one out of three operating modes (see Figure 5 and Figure 6).

Depending on the condition of the mode selection pin NEN and NRM the device can enter every mode of

operation after the power-up:

• The NEN input is set to “low” and NRM input is set to “high” - Normal-operating mode

• The NEN input is set to “high” - Power-save mode

• The NEN input is set to “low” and NRM input is set to “low” - Receive-only mode

Figure 5

Power-up and power-down

NEN

NRM

Power-down

state

“X”

“X”

“off”

Normal-operating

mode

NEN

NRM

0

1

“on”

Receive-only

mode

NEN

NRM

0

“0”

“on”

Power-save

mode

NEN

NRM

1

“X”

“on”

NRM “0”

NEN “0”

NRM “1”

NEN “0”

NEN “1”

“blue” -> indicates the event triggering the

power-up or power-down

“red” -> indicates the condition which is

required to reach a certain operating mode