FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Watchdog: Timeout 350 ms
Power
Down
Reset Counter
(3.4 ms) Expired
Reset
Normal Request
SPI: MCR (0000) and Normal Debug
SPI: MCR (0000) and Standby Debug
Normal Debug
Normal
Standby Debug
Figure 16. Transitions to Enter Debug Modes
Watchdog: Time-out 350 ms
Wake-Up
Wake-Up
Reset Counter
(3.4 ms) Expired
Reset
Sleep
Stop (1)
Normal Request
R
R
R
R
R
R
Normal
Stop Debug
Standby
E
E
SPI: Standby Debug
SPI: Normal Debug
Normal Debug
Standby Debug
R
R
(1) If Stop mode is entered, it is entered without watchdog, no matter the WDSTOP bit.
(E) Debug mode entry point (Step 5 of the Debug mode entering sequence).
(R) Represents transitions to Reset mode due to V1 low.
Figure 17. Simplified 33742S State Diagram in Debug Modes
33742
Analog Integrated Circuit Device Data
Freescale Semiconductor
31
FREESCALE [ Freescale ]
