Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 48

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

26
Z8 Encore!
Product Specification
Reset and Stop-Mode Recovery
Internal Precision
Internal RESET
System Clock
V
CC
Oscillator
= 3.3V
Signal
Watch-Dog Timer Reset
V
V
POR
VBO
®
Motor Control Flash MCUs
threshold voltage) and forces the device into the Reset state. While the supply voltage
remains below the Power-On Reset voltage threshold (V
the Reset state.
After the supply voltage again exceeds the Power-On Reset voltage threshold and stabi-
lized, the device progresses through a full System Reset sequence, as described in the
Power-On Reset section. Following Power-On Reset, the POR status bit in the Reset
Source register is set to 1. Figure 4 illustrates Voltage Brown-Out operation. Refer to the
On-Chip Peripheral AC and DC Electrical Characteristics
VBO and POR threshold voltages (V
The Voltage Brown-Out circuit can be either enabled or disabled during STOP mode.
Operation during STOP mode is controlled by the
Bits chapter for information on configuring
If the device is in normal or HALT mode, the Watch-Dog Timer can initiate a System
Reset at time-out if the
grammed) setting of the
Control Register
Figure 4. Voltage Brown-Out Reset Operation
is set to signify that the reset was initiated by the Watch-Dog Timer.
Execution
WDT_RES
Program
WDT_RES
P R E L I M I N A R Y
Option Bit is set to 1. This setting is the default (unpro-
Option Bit. The
VBO
Counter Delay
Brown-Out
Option Bit
Voltage
and V
VBO_AO
POR
VBO_AO
WDT
).
.
Counter Delay
System Clock
POR
status bit in the
section on page 265
Option Bit. Refer to the Option
), the VBO holds the device in
Program Execution
Reset Status and
PS024604-1005
V
CC
for the
= 3.3V