68HC908MR24 Datasheet, PDF (164/406 Pages) Freescale Semiconductor, Inc – Microcontrollers

CYCLE START
DISX
FMODE2
LOGIC HIGH FOR FAULT
FPIN2
FAULT
PIN2
TWO
SAMPLE
FILTER
ONE
SHOT
S
R
CLEAR BY WRITING 1 TO FTACK2
Q _FFLAG2
AUTO
MODE
MANUAL
MODE
FINT2
SOFTWARE X DISABLE
SQ
R
FAULT PIN 2 DISABLE
SQ
R
BANK X DISABLE
INTERRUPT REQUEST
The example is of fault pin 2 with DISX. Fault pin 4 with DISY is logically similar and affects BANK Y disable.
Note: In manual mode (FMODE = 0), faults 2 and 4 may be cleared only if a logic level low at the input of the fault pin is present.
Figure 9-25. PWM Disabling Scheme (Sheet 1 of 2)