Z8F6421PM020SC Datasheet, PDF (212/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
192
1 = User program code is accessible. All On-Chip Debugger commands are enabled. This
setting is the default for unprogrammed (erased) Flash.
Reserved
These Option Bits are reserved for future use and must always be 1.This setting is the
default for unprogrammed (erased) Flash.
FWP—Flash Write Protect (Flash version only)
FWP Description
0 Programming, Page Erase, and Mass Erase through User Code is disabled. Mass Erase
is available through the On-Chip Debugger.
1 Programming, and Page Erase are enabled for all of Flash Program Memory.
Flash Memory Address 0001H
Table 98. Options Bits at Flash Memory Address 0001H
BITS
7
6
5
4
3
2
1
0
FIELD
Reserved
RESET
U
R/W
R/W
ADDR
Program Memory 0001H
Note: U = Unchanged by Reset. R = Read-Only. R/W = Read/Write.
Reserved
These Option Bits are reserved for future use and must always be 1. This setting is the
default for unprogrammed (erased) Flash.
PS019915-1005
Option Bits