NXP Semiconductors /LPC408x_7x /CAN1 /MOD

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Interpret as MOD

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (NORMAL_THE_CAN_CONTR)RM 0 (NORMAL_THE_CAN_CONT)LOM 0 (NORMAL_A_TRANSMITTE)STM 0 (CAN_ID_THE_TRANSMIT)TPM 0 (WAKE_UP_NORMAL_OPER)SM 0 (LOW_ACTIVE_RD_INPUT)RPM 0RESERVED 0 (DISABLED_NORMAL_OPE)TM 0RESERVED

LOM=NORMAL_THE_CAN_CONT, TM=DISABLED_NORMAL_OPE, RPM=LOW_ACTIVE_RD_INPUT, RM=NORMAL_THE_CAN_CONTR, TPM=CAN_ID_THE_TRANSMIT, SM=WAKE_UP_NORMAL_OPER, STM=NORMAL_A_TRANSMITTE

Description

Controls the operating mode of the CAN Controller.

Fields

RM

Reset Mode.

0 (NORMAL_THE_CAN_CONTR): Normal.The CAN Controller is in the Operating Mode, and certain registers can not be written.

1 (RESET_CAN_OPERATION): Reset. CAN operation is disabled, writable registers can be written and the current transmission/reception of a message is aborted.

LOM

Listen Only Mode.

0 (NORMAL_THE_CAN_CONT): Normal. The CAN controller acknowledges a successfully received message on the CAN bus. The error counters are stopped at the current value.

1 (LISTEN_ONLY_THE_CON): Listen only. The controller gives no acknowledgment, even if a message is successfully received. Messages cannot be sent, and the controller operates in error passive mode. This mode is intended for software bit rate detection and hot plugging.

STM

Self Test Mode.

0 (NORMAL_A_TRANSMITTE): Normal. A transmitted message must be acknowledged to be considered successful.

1 (SELF_TEST_THE_CONTR): Self test. The controller will consider a Tx message successful even if there is no acknowledgment received. In this mode a full node test is possible without any other active node on the bus using the SRR bit in CANxCMR.

TPM

Transmit Priority Mode.

0 (CAN_ID_THE_TRANSMIT): CAN ID. The transmit priority for 3 Transmit Buffers depends on the CAN Identifier.

1 (LOCAL_PRIORITY_THE_): Local priority. The transmit priority for 3 Transmit Buffers depends on the contents of the Tx Priority register within the Transmit Buffer.

SM

Sleep Mode.

0 (WAKE_UP_NORMAL_OPER): Wake-up. Normal operation.

1 (SLEEP_THE_CAN_CONTR): Sleep. The CAN controller enters Sleep Mode if no CAN interrupt is pending and there is no bus activity. See the Sleep Mode description Section 21.8.2 on page 565.

RPM

Receive Polarity Mode.

0 (LOW_ACTIVE_RD_INPUT): Low active. RD input is active Low (dominant bit = 0).

1 (HIGH_ACTIVE_RD_INPU): High active. RD input is active High (dominant bit = 1) – reverse polarity.

RESERVED

Reserved. Read value is undefined, only zero should be written.

TM

Test Mode.

0 (DISABLED_NORMAL_OPE): Disabled. Normal operation.

1 (ENABLED_THE_TD_PIN_): Enabled. The TD pin will reflect the bit, detected on RD pin, with the next positive edge of the system clock.

RESERVED

Reserved. Read value is undefined, only zero should be written.

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