Z8F082A28100KIT ZILOG [Zilog, Inc.], Z8F082A28100KIT Datasheet - Page 46

• Manufacturer Part Number: Z8F082A28100KIT
• Description: Z8 Encore XP-R F08xA Series with eXtended Peripherals
• Manufacturer: ZILOG [Zilog, Inc.]

Low-Power Modes
Overview
STOP Mode
PS024705-0405
The Z8 Encore! XP
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:
•
•
•
•
•
•
•
•
•
To minimize current in STOP mode, all GPIO pins that are configured as digital inputs
must be driven to one of the supply rails (V
STOP mode using STOP Mode Recovery. For more information about STOP Mode
Recovery refer to
Primary crystal oscillator and internal precision oscillator are stopped; XIN and XOUT (if
previously enabled) are disabled, and PA0/PA1 revert to the states programmed by the
GPIO registers
System clock is stopped
eZ8 CPU is stopped
Program counter (PC) stops incrementing
Watch-Dog Timer’s internal RC oscillator continues to operate if enabled by the Oscillator
Control Register
If enabled, the Watch-Dog Timer logic continues to operate
If enabled for operation in STOP mode by the associated Flash Option Bit, the Voltage-
brown out protection circuit continues to operate
Transimpedance amplifier in the ADC block continues to operate if enabled by the Power
Control Register to do so; all other portions of the ADC are disabled
All other on-chip peripherals are idle
“Reset and STOP Mode Recovery” on page 19
®
F08xA Series products contain power-saving features. The highest
P R E L I M I N A R Y
CC
or GND). The device can be brought out of
Z8 Encore! XP
.
Product Specification
®
Low-Power Modes
F08xA Series
28