Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 281

• 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

Flash Option Bits
Overview
Operation
PS025011-1010
Option Bit Configuration by Reset
Option Bit Types
Programmable Flash Option Bits allow user configuration of certain aspects of 
Z8 Encore! XP F1680 Series operation. The feature configuration data is stored in the
Flash Program Memory and read during Reset. The features available for control through
the Flash Option Bits include:
•
•
•
•
•
•
•
•
Each time the Flash Option bits are programmed or erased, the device must be Reset for
the change to take effect. During any Reset operation (System Reset or Stop Mode
Recovery), the Flash Option bits are automatically read from the Flash Program Memory
and written to Option Configuration registers. The Option Configuration registers control
operation of the devices within the Z8 Encore! XP F1680 Series. Option Bit control is
established before the device exits Reset and the eZ8 CPU begins code execution. The
Option Configuration registers are not part of the Register File and are not accessible for
read or write access.
User Option Bits
The user option bits are contained in the first two bytes of Program Memory. User access
to these bits has been provided because these locations contain application-specific device
Watchdog Timer timeout response selection–interrupt or System Reset.
Watchdog Timer enabled at Reset.
The ability to prevent unwanted read access to user code in Program Memory.
The ability to prevent accidental programming and erasure of all or a portion of 
the user code in Program Memory.
VBO configuration-always enabled or disabled during STOP mode 
to reduce STOP mode power consumption.
VBO voltage threshold selection.
Oscillator mode selection for high, medium, and low-power crystal oscillators, 
or external RC oscillator.
Factory trimming information for the IPO and Temperature Sensor.
P R E L I M I N A R Y
Z8 Encore! XP
Product Specification
®
Flash Option Bits
F1680 Series
267