Z8F0113HJ005EG Datasheet, PDF (165/245 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F0823 Series
Product Specification
150
Bit
[3]
VBO_AO
[2]
FRP
[1]
[0]
FWP
Description (Continued)
Voltage Brown-Out Protection Always ON
0 = Voltage Brown-Out Protection can be disabled in STOP Mode to reduce total power con-
sumption. For the block to be disabled, the power control register bit must also be writ-
ten (see the Power Control Register 0 section on page 31).
1 = Voltage Brown-Out Protection is always enabled including during STOP Mode. This set-
ting is the default for unprogrammed (erased) Flash.
Flash Read Protect
0 = User program code is inaccessible. Limited control features are available through the
On-Chip Debugger.
1 = User program code is accessible. All On-Chip Debugger commands are enabled. This
setting is the default for unprogrammed (erased) Flash.
Reserved
This bit is reserved and must be programmed to 1.
Flash Write Protect
This Option Bit provides Flash Program Memory protection:
0 = Programming and erasure disabled for all of Flash Program Memory. Programming,
Page Erase, and Mass Erase through User Code is disabled. Mass Erase is available
using the On-Chip Debugger.
1 = Programming, Page Erase, and Mass Erase are enabled for all of Flash program mem-
ory.
Table 90. Flash Options Bits at Program Memory Address 0001H
Bit
7
6
5
4
3
Field
Reserved
XTLDIS
RESET
U
U
U
U
U
R/W
R/W
R/W
R/W
R/W
R/W
Address
Program Memory 0001H
Note: U = Unchanged by Reset. R/W = Read/Write.
2
1
Reserved
U
U
R/W
R/W
0
U
R/W
PS024315-1011
PRELIMINARY
Flash Option Bit Address Space