User's Manual l STK-MBa53 UM 100 l © 2013 TQ-Group
Page 16
4.1.6
Power and Reset
Illustration 9:
Block diagram Power and Reset
There are several different possibilities to trigger a reset on the STK-MBa53, which are shown in the following table.
Table 17:
Resets on the TQMa53
Reset-Signal
Description
Trigger
RESET_IN
•
Generates a warm-reset of the i.MX53 CPU
on the TQMa53
•
JTAG device at JTAG interface (pin header X17)
PWRON
•
“On”-switch for PMIC on TQMa53
•
Keystroke at S9
•
Pull-down to GND at pin header X17 (see Table 68)
GLBRST#
•
Generates complete restart of the PMIC
on the TQMa53
•
A Power-down and Power-up cycle
is performed
•
VCC3V3 and VCC5V switching regulator
(e.g., voltage drop at V
IN
, or overload)
•
Long keystroke at S8 according to PMIC register
GLBRSTTMR[1:0]
