L99PM72PXP datasheet(36/128 Pages) STMICROELECTRONICS

tên linh kiện	L99PM72PXP

Giải thích chi tiết về linh kiện	Advanced power management system IC with embedded LIN and high speed CAN transceiver supporting CAN Partial Networking

PDF	128 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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L99PM72PXP

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Doc ID 023553 Rev 3

Figure 20.

CAN transceiver state diagram if selective wake-up is enabled (CR16 SW_EN = 1)

TRX Normal Mode

Full functionality of the CAN-Transceiver is available (transmitter and receiver) and the bus

biasing is enabled.

State transitions from 'TRX Normal' mode to 'VBat_standby' and 'V1_standby' are possible. No

interrupt is generated in this mode.

CAN TRX_STBY Mode

The CAN-Transmitter is disabled in this mode and the RxDC-pin is kept at high ('recessive')

level.

If selective wake-up is enabled (SW_EN=1), the receiver, CAN biasing and the reference

oscillator are active. Once a wake up frame (WUF) is detected by the internal CAN frame

detection logic, this wake-up event is indicated to the micro-controller by an interrupt signal

(see Section 2.2.5: Interrupt for more details). A wake-up pattern (WUP) is not required and

does not count as a frame error.

Since a further CAN-timeout cannot be indicated, if the CAN_TO bit has already been set, it

is recommended to clear this bit before entering V1_standby Mode.

If selective wake-up is disabled (SW_EN = 0), the CAN-Receiver is capable to detect a

wake-up pattern (WUP). In V1_standby Mode and Active Mode, a WUP is indicated to the

micro-controller by an interrupt signal (see Section 2.2.5: Interrupt for more details). In this

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