Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 51

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

PS024604-1005
Reset Control Register Definitions
Caution:
PWM Fault0 and Reset pin selection
Reset Status and Control Register
The RESET pin can be set to function as a PWM Fault input. When selected, the RESET
input function is disabled. The
software selection of the RESET pin function. The pin function is selected by writing the
the unlock sequence followed by the mode to this register. A software write to the
bit will override the value set by the
Writing the
unlocks access to the
bit. The following sequence is required to unlock this register and write the
1. Write
2. Write
3. Write the
All steps of the unlock sequence must be written in the order listed.
The Reset Status (RSTSTAT) Register, shown in Table 9, records the cause of the most
recent Reset or Stop-Mode Recovery. All status bits are updated on each Reset or Stop-
Mode Recovery event. Table 10 indicates the possible states of the Reset status bits fol-
lowing a Reset or Stop-Mode Recovery event. The RESET pin function is also select with
FLTSEL
Short pulses on the Port pin can initiate Stop-Mode Recovery without initiating an in-
terrupt (if enabled for that pin).
bit.
14h
92h
14h
FLTSEL
to the Reset Status and Control Register (RSTSTAT).
to the Reset Status and Control Register (RSTSTAT).
,
92h
FLTSEL
unlock sequence to the Reset Status and Control Register address
bit.
P R E L I M I N A R Y
bit. The locking mechanism prevents spurious writes to this
FLTSEL
FLTSEL
bit in the
user option bit
Reset Status and Control Register
Z8FMC16100 Series Flash MCU
PWM Fault0 and Reset pin selection
Product Specification
FLTSEL
FLTSEL
allows
bit.
29