TRK-USB-MPC5643L Freescale Semiconductor, TRK-USB-MPC5643L Datasheet - Page 108

• Manufacturer Part Number: TRK-USB-MPC5643L
• Description: Development Boards & Kits - Other Processors StarTrakMiniUSG MPC5643L
• Manufacturer: Freescale Semiconductor

Specifications of TRK-USB-MPC5643L

• Rohs: yes
• Product: Starter Kits
• Tool Is For Evaluation Of: MPC5643L
• Core: Five Stage Pipeline
• Interface Type: LIN, DSPI
• Operating Supply Voltage: 3 V to 3.6 V
• Data Bus Width: 32 bit, 64 bit
• Description/function: Starter Kit for MPC5643L
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• For Use With: MPC5643L

Electrical characteristics
3.19.5
If the application design requires the use of an external watchdog the data provided in
to determine the correct positioning of the trigger window for the external watchdog.
the minimum and the maximum duration of a given reset sequence and the position of an external watchdog trigger window.
3.20
AC Test Timing Conditions: Unless otherwise noted, all test conditions are as follows:
• TJ = –40 to 150 C
• Supply voltages as specified in
108
AC timing characteristics
RESET_B
External watchdog window
T
WDStart, min
RESET
Figure 19. Reset sequence - External watchdog trigger window position
Internal Reset Sequence
Start condition (signal or voltage rail)
V
External Watchdog Window Closed
T
T
Reset, min
WDStart, max
Figure 18. Reset sequence start via RESET assertion
Table 9
MPC5643L Microcontroller Data Sheet, Rev. 8.1
External Watchdog Window Closed
Earliest
Application
Start
T
Reset, max
Basic Application Init
T
Reset, min
0.65 * VDD_HV_IO
0.35 * VDD_HV_IO
T
Reset, max
External Watchdog Window Open
starts here
Watchdog needs to be triggered within this window
Latest
Application
Start
starts here
Basic Application Init
Application Running
External Watchdog Window Open
Figure 19
Section 3.19, Reset sequence
Application time required to
prepare watchdog trigger
shows the relationships between
Watchdog trigger
Application Running
Freescale Semiconductor
t
can be used