Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 59

• Manufacturer Part Number: Z8F16800144ZCOG
• Description: KIT DEV FOR Z8F642 MCU 44 PIN
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: MCUr

Specifications of Z8F16800144ZCOG

• Contents: Hardware, Software and Documentation
• For Use With/related Products: Z8F642
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4678

Low-Power Modes
Overview
STOP Mode
PS025011-1010
The Z8 Encore! XP F1680 Series products have power-saving features. The highest level
of power reduction is provided by the STOP mode. The next lower level of power 
reduction is provided by the HALT mode.
Further power savings can be implemented by disabling individual peripheral blocks
while in NORMAL mode.
Executing the eZ8 CPU’s Stop instruction places the device into STOP mode. 
In STOP mode, the operating characteristics are:
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Primary crystal oscillator and internal precision oscillator are stopped; XIN and XOUT 
System clock is stopped.
eZ8 CPU is stopped.
Program counter (PC) stops incrementing.
Watchdog Timer’s internal RC oscillator continues operating if enabled by
If enabled, the Watchdog Timer (WDT) logic continues operating.
If enabled, the 32 kHz secondary oscillator continues operating.
If enabled for operation in STOP Mode, the Timer logic continues to operate with 
If enabled for operation in STOP mode by the associated Flash Option Bit, the 
Low-Power Operational Amplifier and comparator continue to operate if being enabled 
All other on-chip peripherals are idle.
(if previously enabled) are disabled and PA0/PA1 reverts to the states programmed by the
GPIO registers.
32 kHz secondary oscillator as the Timer clock source.
VBO protection circuit continues operating. The low-voltage detection circuit 
continues to operate if being enabled by the Power Control Register to do so.
by the Power Control Register to do so.
the Oscillator Control Register.
P R E L I M I N A R Y
Z8 Encore! XP
Product Specification
®
Low-Power Modes
F1680 Series
45