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Analog Integrated Circuit Device Data
Freescale Semiconductor
87
33903/4/5
SERIAL PERIPHERAL INTERFACE
FLAGS AND DEVICE STATUS
I/O
HS3 short to
GND
Description
Report I/O-3 HS switch short to GND failure
Set / Reset condition
Set: failure detected. Reset failure recovered and flag read (SPI)
HS2 short to
GND
Description
Report I/O-2 HS switch short to GND failure
Set / Reset condition
Set: failure detected. Reset failure recovered and flag read (SPI)
SPI parity
error
Description
Report SPI parity error was detected.
Set / Reset condition
Set: failure detected. Reset: flag read (SPI)
CSB low
>2.0 ms
Description
Report SPI CSB was low for a time longer than typically 2.0 ms
Set / Reset condition
Set: failure detected. Reset: flag read (SPI)
VSUP/2-UV
Description
Report that VSUP/2 is below VS2_LOW threshold.
Set / Reset condition
Set VSUP/2 below VS2_LOW thresh. Reset VSUP/2 > VS2_LOW thresh and flag read (SPI)
VSUP/1-OV
Description
Report that VSUP/1 is above VS_HIGH threshold.
Set / Reset condition
Set VSUP/1 above VS_HIGH threshold. Reset VSUP/1 < VS_HIGH thresh and flag read (SPI)
I/O-0 thermal
Description
Report that the I/O-0 HS switch has reach overtemperature threshold.
Set / Reset condition
Set: I/O-0 HS switch thermal sensor above threshold. Reset: thermal sensor below threshold and flag
read (SPI)
watchdog
flash mode
50%
Description
Report that the watchdog period has reach 50% of its value, while device is in Flash mode.
Set / Reset condition
Set: watchdog period > 50%. Reset: flag read
I/O-1-3 Wake-
up
Description
Report that Wake-up source is I/O-1 or I/O-3
Set / Reset condition
Set: after I/O-1 or I/O-3 wake detected. Reset: Flag read (SPI)
I/O-0-2 Wake-
up
Description
Report that Wake-up source is I/O-0 or I/O-2
Set / Reset condition
Set: after I/O-0 or I/O-2 wake detected. Reset: Flag read (SPI)
SPI Wake-up
Description
Report that Wake-up source is SPI command, in LP VDD ON mode.
Set / Reset condition
Set: after SPI Wake-up detected. Reset: Flag read (SPI)
FWU
Description
Report that Wake-up source is forced Wake-up
Set / Reset condition
Set: after Forced Wake-up detected. Reset: Flag read (SPI)
INT service
Timeout
Description
Report that INT timeout error detected.
Set / Reset condition
Set: INT service timeout expired. Reset: flag read.
LP VDD OFF
Description
Report that LP VDD OFF mode was selected, prior Wake-up occurred.
Set / Reset condition
Set: LP VDD OFF selected. Reset: Flag read (SPI)
Reset request Description
Report that RST source is an request from a SPI command (go to RST mode).
Set / Reset condition
Set: After reset occurred due to SPI request. Reset: flag read (SPI)
Hardware
Leave Debug
Description
Report that the device left the Debug mode due to hardware cause (voltage at DBG pin lower than
typically 8.0 V).
Set / Reset condition
Set: device leave debug mode due to hardware cause. Reset: flag read.
Table 40. Flag Descriptions
Flag
Description