MFS2301BMBACEP datasheet(72/230 Pages) NXP

72 / 230 page

NXP Semiconductors

FS23

Safety system basis chip (SBC) with power management, CAN FD and LIN transceivers

aaa-051461

LIN_OFF

LIN_WAKE_

CAPABLE

LIN_LISTEN

_ONLY

LIN_ACTIVE

LIN_EN_OTP = 1 &

(VSHS_UV = 0 or LIN_VSHSUV_DIS = 0)

& (LIN_MODE != 00 or LIN_WUEN != 00)

LIN_MODE = 00 or

FS23_MODE != NORMAL

LIN_MODE = 00 or

FS23_MODE != NORMAL

(VSHS_UV = 0 or LIN_VSHSUV_DIS = 0)

& LINTXD = 1 & LIN_MODE = 1x

& FS23_MODE = NORMAL & LIN_TSD = 0

(LIN_MODE = 01 or (LINTXD = 0 & LIN_MODE = 1x))

& FS23_MODE = NORMAL

(LIN_MODE = 01 & FS23_MODE = NORMAL)

or LIN_TSD = 1

or LIN_TXD_TO = 1

or LIN_SC = 1

From any state:

POR or LIN_EN_OTP = 0

or (VSHS_UV = 1 & LIN_VSHSUV_DIS = 1)

or (LIN_MODE = 00 & LIN_WUEN = 00)

or (LIN_WUEN = 00 & FS23_MODE != NORMAL)

LINTXD = 1

& LIN_MODE = 1x

& FS23_MODE = NORMAL

Figure 40. LIN transceiver state machine

18.2.1.1 LIN Off mode

When the LIN mode is set to 2b’00 and the LIN wake-up capability is disabled, or if the device is not in Normal

mode (that is, in LPON or LPOFF modes) and the wake-up capability is disabled, the LIN transceiver is in Off

mode.

In this mode, the normal and low-power receivers and the transmitter of the LIN transceiver are disabled and

the LINRXD pin is driven high.

18.2.1.2 LIN Wake-capable mode

The LIN transceiver is in Wake-capable mode as soon as the LIN mode is different from 2b’00 or as soon as the

wake-up capability of the LIN is enabled, regardless of the device state once powered up.

In this mode, the LIN transmitter and the LIN normal receiver are disabled. Only the low-power wake-capable

receiver is enabled to allow wake-up pattern detection and device wake-up. The LINRXD pin is driven high (to

VDDIO).

FS23

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 7.0 — 16 October 2024

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