33902 Datasheet, PDF (23/31 Pages) Freescale Semiconductor, Inc – High Speed CAN Interface with Embedded 5.0 V Supply

FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
LxWU
CANWU
VMONF
CANF
WILS
SPIerr
ERR_EXT
Description
Set
Reset
Action
Description
Set
Reset
Action
Description
Set
Reset
Action
Description
Set
Reset
Action
Description
Set
Reset
Action
Description
Set
Reset
Action
Description
Configure
Reset
Action
Wake-up event occurred on the WAKE pin
In low power mode, by a local wake pin transition
Exit Normal mode or P_SPI reading (Listen Only and Normal mode)
Avoid entering Go To Sleep mode. Set ERR low in low power modes
Wake-up event occurred on CAN bus
In low power mode, by CAN wake-up
Exit Normal mode or P_SPI reading (Listen Only and Normal mode)
Avoid entering Go To Sleep mode. Set ERR and RXD low in low power modes
Voltage monitoring flag: OR of V_SOV, V_SUV, V_IO, V_DDLOW, V_DD prewarning Temp
In normal and listen only modes: OR of V_SOV, V_SUV, V_IO, V_DDLOW, V_DD prewarning Temp
Entering low power mode or (Failure removed + P_SPI reading (Listen Only and Normal mode))
If ERR_EXT is set, ERR pin set low. ERR is low for the VDD low flag, despite the ERR-EXT bit.
Failure on the CAN bus. OR of CANF2, CANF1, CANF0 bits
In Normal and Listen Only modes: OR of TXDPD, RXDPR, CANcur, CAN bus failures
Entering low power mode or (Failure removed + P_SPI reading (Listen Only and Normal mode))
Depending upon failure. ref to detail flag description
Real time WAKE input level. Low is WAKE below threshold, high is WAKE above threshold.
WAKE pin higher than threshold
WAKE pin lower than threshold
No action
Pseudo SPI error: Incomplete transmission error during start of P_SPI
When P_SPI frame does not have 8 clock pulses
Entering low power mode or P_SPI reading (Listen Only and Normal mode)
P_SPI wrong command is ignored
ERR pin operation report all flags
By P_SPI
Entering low power mode
When high, extend the ERR output pin to report all flags (when available) in any modes. When low
(default) ERR reports default flags.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33902
23