MCZ33905BS3EK Freescale Semiconductor, MCZ33905BS3EK Datasheet - Page 85

• Manufacturer Part Number: MCZ33905BS3EK
• Description: IC SBC CAN HS 3.3V 32SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33905BS3EK

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 38. Flag Descriptions
Analog Integrated Circuit Device Data
Freescale Semiconductor
CAN
CAN driver
state
CAN receiver
state
CAN WU
enable
CAN
Wake-Up
CAN Over-
temp
RXD low
Rxd high
TXD dom
Bus Dom
clamp
CAN Over-
current
CAN_UF
CAN_F
CANL
to V
CANL to VDD
CANL to GND Description
CANH
to V
CANH to VDD
CANH to
GND
BAT
BAT
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Flag
Report real time CAN bus driver state: 1 if Driver is enable, 0 if driver disable
Set: CAN driver is enable. Reset: CAN driver is disable. Driver can be disable by SPI command (ex
CAN set in RXD only Mode) or following a failure event (ex: TXD Dominant). Flag read SPI command
(0x2180) do not clear the flag, as it is “real time” information.
Report real time CAN bus receiver state: 1 if Enable, 0 if disable
Set: CAN bus receiver is enable. Reset: CAN bus receiver is disable. Receiver disable by SPI
command (ex: CAN set in sleep Mode). Flag read SPI command (0x2180) do not clear the flag, as it
is “real time” information.
Report real time CAN bus Wake-Up receiver state: 1 if WU receiver is enable, 0 if disable
Set: CAN Wake-Up receiver is enable. Reset: CAN Wake-Up receiver is disable. Wake-Up receiver
is controlled by SPI, and is active by default after device Power ON. SPI command (0x2180) do not
change flag state.
Report that Wake-Up source is CAN
Set: after CAN wake detected. Reset: Flag read (SPI)
Report that the CAN interface has reach over-temperature threshold.
Set: CAN thermal sensor above threshold. Reset: thermal sensor below threshold and flag read (SPI)
Report that RXD pin is shorted to GND.
Set: RXD low failure detected. Reset: failure recovered and flag read (SPI)
Report that RXD pin is shorted to recessive voltage.
Set: RXD high failure detected. Reset: failure recovered and flag read (SPI)
Report that TXD pin is shorted to GND.
Set: TXD low failure detected. Reset: failure recovered and flag read (SPI)
Report that the CAN bus is dominant for a time longer than t
Set: Bus dominant clamp failure detected. Reset: failure recovered and flag read (SPI)
Report that the CAN current is above CAN over-current threshold.
Set: CAN current above threshold. Reset: current below threshold and flag read (SPI)
Report that the CAN failure detection has not yet identified the bus failure
Set: bus failure pre detection. Reset: CAN bus failure recovered and flag read
Report that the CAN failure detection has identified the bus failure
Set: bus failure complete detetction.Reset: CAN bus failure recovered and flag read
Report CAN L short to V
Set: failure detected. Reset failure recovered and flag read (SPI)
Report CANL short to VDD
Set: failure detected. Reset failure recovered and flag read (SPI)
Report CAN L short to GND failure
Set: failure detected. Reset failure recovered and flag read (SPI)
Report CAN H short to V
Set: failure detected. Reset failure recovered and flag read (SPI)
Report CANH short to VDD
Set: failure detected. Reset failure recovered and flag read (SPI)
Report CAN H short to GND failure
Set: failure detected. Reset failure recovered and flag read (SPI)
BAT
BAT
failure
failure
Description
DOM
SERIAL PERIPHERAL INTERFACE
FLAGS AND DEVICE STATUS
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