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ZUSBOPTSC01ZACG 数据表(PDF) 172 Page - Zilog, Inc.

部件名 ZUSBOPTSC01ZACG
功能描述  High-Performance 8-Bit Microcontrollers
PDF  282 Pages
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制造商  ZILOG [Zilog, Inc.]
网页  http://www.zilog.com
标志 ZILOG - Zilog, Inc.

ZUSBOPTSC01ZACG 数据表(HTML) 172 Page - Zilog, Inc.

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PS022827-1212
P R E L I M I N A R Y
Flash Control Register Definitions
Z8 Encore! XP® F082A Series
Product Specification
155
Flash Status Register
The Flash Status (FSTAT) Register indicates the current state of the Flash Controller. This
register can be read at any time. The read-only Flash Status Register shares its Register
File address with the Write-only Flash Control Register.
Table 80. Flash Control Register (FCTL)
Bit
7
6
5
4
3
2
1
0
Field
FCMD
RESET
00000000
R/W
WWWWWWWW
Address
FF8H
Bit
Description
[7:0]
FCMD
Flash Command
73H = First unlock command.
8CH = Second unlock command.
95H = Page Erase command (must be third command in sequence to initiate Page Erase).
63H = Mass Erase command (must be third command in sequence to initiate Mass Erase).
5EH = Enable Flash Sector Protect Register Access
Table 81. Flash Status Register (FSTAT)
Bit
7
6
5
4
3
2
1
0
Field
Reserved
FSTAT
RESET
00000000
R/W
RRRRRRR
R
Address
FF8H
Bit
Description
[7:6]
These bits are reserved and must be programmed to 00.
[5:0]
FSTAT
Flash Controller Status
000000 = Flash Controller locked.
000001 = First unlock command received (73H written).
000010 = Second unlock command received (8CH written).
000011 = Flash Controller unlocked.
000100 = Sector protect register selected.
001xxx = Program operation in progress.
010xxx = Page erase operation in progress.
100xxx = Mass erase operation in progress.



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