mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 76

• Manufacturer Part Number: mc33905s
• Description: System Basis Chip Gen2 With High Speed Can And Lin Interface
• Manufacturer: Freescale Semiconductor, Inc

Table 37. Flag Descriptions
76
33904/5
SERIAL PERIPHERAL INTERFACE
FLAGS
Vaux_low
Vaux_over-
current
5V-can_
Thermal
shutdown
5V-can_
UV
5V-can_
over-current
V
low
V
Under-voltage
I
NORMAL
mode
V
Thermal
shutdown
R
(<100ms)
V
batfail
I
Vddon mode
CAN
wake-up
CAN Over-
temp
RxD low
Rxd high
TxD dom
Bus Dom
clamp
DD
DD
SENSE
SUP
DD
SUP
ST
-OC-
-OC-LP
_low
_
_
_
_
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
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Flag
Reports that V
Set: V
Report that current out of V
Set: Current above threshold for t >100μs. Reset: Current below threshold and flag read by SPI.
Report that the 5V-can regulator has reached over temperature threshold.
Set: 5V-can thermal sensor above threshold. Reset: thermal sensor below threshold and flag read
(SPI)
Reports that 5V-can regulator output voltage is lower than the 5V-can UV threshold.
Set: 5V-can below 5V-can UV for t >100μs typ. Reset: 5V-can > threshold and flag read (SPI)
Report that the CAN driver output current is above threshold.
Set: 5V-can current above threshold for t>100us. Reset: 5V-can current below threshold and flag read
(SPI)
Reports that V
Set: V
Reports that V
Set: V
Report that current out of Vdd pin is higher that Idd-oc threshold, while device is in Normal mode.
Set: current above threshold for t>100us typ. Reset; current below threshold and flag read (SPI)
Report that the Vdd has reached over temperature threshold, and was turned off.
Set: Vdd off due to thermal condition. Reset: Vdd recover and flag read (SPI)
Report that the Reset pin has detected a low level, shorter than 100ms
Set: after detection of reset low pulse. Reset: Reset pulse terminated and flag read (SPI)
Report that the device voltage at Vsup1 pin was below BATFAIL threshold.
Set: Vsup1 below BATFAIL. Reset: Vsup1 above threshold, and flag read (SPI)
Report that current out of Vdd pin is higher that Idd-oc threshold LP, while device is in Low Power V
ON Mode.
Set: current above threshold for t>100us typ. Reset; current below threshold and flag read (SPI)
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 Rx pin is shorted to gnd.
Set: Rx low failure detected. Reset: failure recovered and flag read (SPI)
Report that Rx pin is shorted to recessive voltage.
Set: Rx high failure detected. Reset: failure recovered and flag read (SPI)
Report that Tx pin is shorted to gnd.
Set: Tx 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)
AUX
sense
sup1
below threshold for t >100μs typ. Reset: V
below threshold for t >100μs typ. Reset: V
below threshold for t >100μs typ. Reset: V
AUX
sense
sup1
regulator output voltage is lower than the V
terminal is lower than the V
terminal is lower than the V
AUX
regulator is above V
Description
sup1
sense low
low resoled.
AUX
AUX
sup1
sense
_OC threshold.
threshold.
above threshold and flag read (SPI)
above threshold and flag read (SPI)
Analog Integrated Circuit Device Data
above threshold and flag read (SPI)
DOM
AUX
_UV threshold.
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DD