MCZ33903CD3EKSLASHR2 datasheet(89/106 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

33903/4/5

SERIAL PERIPHERAL INTERFACE

FLAGS AND DEVICE STATUS

LIN/1/2

LIN/1/2 bus

dom clamp

Description

Report that the LIN/1/2 bus is dominant for a time longer than tDOM

Set / Reset condition

Set: Bus dominant clamp failure detected. Reset: failure recovered and flag read (SPI)

LIN/1/2 State

Description

Report real time LIN interface TXD/RXD mode. 1 if LIN is in TXD/RXD mode. 0 is LIN is not in TXD/

RXD mode.

Set / Reset condition

Set: LIN in TXD RXD mode. Reset: LIN not in TXD/RXD mode. LIN not in TXD/RXD mode by SPI

command (ex LIN set in Sleep mode) or following a failure event (ex: TxL Dominant). Flag read SPI

command (0x2780 or 0x2980) do not clear it, as it is “real time” flag.

LIN/1/2 WU

Description

Report real time LIN Wake-up receiver state. 1 if LIN Wake-up is enable, 0 if LIN Wake-up is disable

(means LIN signal will not be detected and will not Wake-up the device).

Set / Reset condition

Set: LIN WU enable (LIN interface set in Sleep mode Wake-up enable). Reset: LIN Wake-up disable

(LIN interface set in Sleep mode Wake-up disable). Flag read SPI command (0x2780 or 0x2980) do

not clear the flag, as it is “real time” information.

LIN/1/2

Wake-up

Description

Report that Wake-up source is LIN/1/2

Set / Reset condition

Set: after LIN/1/2 wake detected. Reset: Flag read (SPI)

LIN/1/2 Term

short to GND

Description

Report LIN/1/2 short to GND failure

Set / Reset condition

Set: failure detected. Reset failure recovered and flag read (SPI)

LIN/1/2

Over-temp

Description

Report that the LIN/1/2 interface has reach over-temperature threshold.

Set / Reset condition

Set: LIN/1/2 thermal sensor above threshold. Reset: sensor below threshold and flag read (SPI)

RXD-L/1/2

low

Description

Report that RXD/1/2 pin is shorted to GND.

Set / Reset condition

Set: RXD low failure detected. Reset: failure recovered and flag read (SPI)

RXD-L/1/2

high

Description

Report that RXD/1/2pin is shorted to recessive voltage.

Set / Reset condition

Set: RXD high failure detected. Reset: failure recovered and flag read (SPI)

TXD-L/1/2

dom

Description

Report that TXD/1/2 pin is shorted to GND.

Set / Reset condition

Set: TXD low failure detected. Reset: failure recovered and flag read (SPI)

Table 40. Flag Descriptions

Flag

Description

MCZ33903CD3EK/R2 Datasheet(PDF) 89 Page - Freescale Semiconductor, Inc

MCZ33903CD3EK/R2 Datasheet(HTML) 89 Page - Freescale Semiconductor, Inc

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