mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 78
mc33905s
Manufacturer Part Number
mc33905s
Description
System Basis Chip Gen2 With High Speed Can And Lin Interface
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC33905S.pdf
(91 pages)
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