mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 78

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

Table 37. Flag Descriptions
78
33904/5
SERIAL PERIPHERAL INTERFACE
FLAGS
FWU
INT service
Timeout
Low Power
V
Reset request Description
Hardware
Leave Debug
INT request
RST high
DBG resistor
V
Prewarning
V
V
voltage
V
voltage
V
>100ms
V
RST low
>100ms
multiple
Resets
W/D refresh
failure
LIN1/2
wake up
LIN1/2 Term
short to gnd
DD
DD
DD
DD
AUX
DD
DD
OFF
temp
UV
Over-
low
low
_over-
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
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
Report that wake up source is Forced Wake Up
Set: after Forced Wake Up detected. Reset: Flag read (SPI)
Report that INT time out error detected.
Set: INT service time out expired. Reset: flag read.
Report that Low Power V
Set: Low Power V
Report that RST source is an request from a SPI command (go to RST mode).
Set: After reset occurred due to SPI request. Reset: flag read (SPI)
Report that the device left the Debug mode due to Hardware cause (voltage at DBG pin lower than
typ 8V).
Set: device leave debug mode due to Hardware cause. Reset: flag read.
Report that INT source is an INT request from a SPI command.
Set: INT occurred. Reset: flag read (SPI)
Report that RST pin is shorted to high voltage.
Set: RST failure detection. Reset: flag read.
Report that the resistor at DBG pin is different from expected (different from SPI register content).
Set: failure detected. Reset: correct resistor and flag read (SPI).
Report that the Vdd has reached over temperature pre warning threshold.
Set: Vdd thermal sensor above threshold. Reset: Vdd thermal sensor below threshold and flag read
(SPI)
Reports that VDD terminal is lower than the VDD
Set: VDD below threshold for t >100μs typ. Reset: VDD above threshold and flag read (SPI)
Reports that VDD terminal is higher than the typ Vdd + 0.6V threshold. I/O-1 can be turned OFF if this
function is selected in INIT register.
Set: VDD above threshold for t >100μs typ. Reset: VDD below threshold and flag read (SPI)
Reports that Vaux terminal is higher than the typ Vaux + 0.6V threshold. I/O-1 can be turned OFF if
this function is selected in INIT register.
Set: Vaux above threshold for t >100μs typ. Reset: Vaux below threshold and flag read (SPI)
Reports that VDD terminal is lower than the VDD
Set: VDD below threshold for t >100ms typ. Reset: VDD above threshold and flag read (SPI)
Report that Vdd is below Vdd undervoltage threshold.
Set: Vdd below threshold. Reset: fag read (SPI)
Report that the Reset pin has detected a low level, longer than 100ms (Reset permanent low)
Set: after detection of reset low pulse. Reset: Reset pulse terminated and flag read (SPI)
Report that the more than 8 consecutive reset pulses occurred, due to missing or wrong W/D refresh.
Set: after detection of multiple reset pulses. Reset: flag read (SPI)
Report that a wrong or missing W/D failure occurred.
Set: failure detected. reset: flag read (SPI)
Report that wake up source is LIN1 or LIN2
Set: after LIN1 or LIN 2 wake detected. Reset: Flag read (SPI)
Report LIN term 1 or LIN term 2 short to gnd failure
Set: failure detected. Reset failure recovered and flag read (SPI)
DD
OFF selected. Reset: Flag read (SPI)
DD
OFF Mode was selected, prior wake up occurred.
Description
UV
UV
threshold.
threshold for a time longer than 100ms
Analog Integrated Circuit Device Data
Freescale Semiconductor