Z8F6421VN00ZEM Zilog, Z8F6421VN00ZEM Datasheet - Page 57
Z8F6421VN00ZEM
Manufacturer Part Number
Z8F6421VN00ZEM
Description
KIT ICE Z8 ENCORE 64K 44PLCC
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
In-Circuit Emulator Systemr
Specifications of Z8F6421VN00ZEM
Contents
Emulator Board, Cables, Software and Documentation
For Use With/related Products
Z8 Encore! 44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3394
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Watchdog Timer Control
WDTCTL (FF0H - Read Only)
Watchdog Timer Reload Upper Byte
WDTU (FF1H - Read/Write)
Watchdog Timer Reload Middle Byte
WDTH (FF2 H- Read/Write)
Watchdog Timer Reload Low Byte
WDTL (FF3H - Read/Write)
Flash Control
FCTL (FF8H - Write Only)
PS019921-0308
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Reserved
EXT
0 = Reset not generated by RESET
pin
1 = Reset generated by RESET pin
WDT
0 = WDT timeout has not occurred
1 = WDT timeout occurred
STOP
0 = SMR has not occurred
1 = SMR has occurred
POR
0 = POR has not occurred
1 = POR has occurred
WDT reload value [23:16]
WDT reload value [15:8]
WDT reload value [7:0]
Flash Command
73H = First unlock command
8CH = Second unlock command
95H = Page erase command
63H = Mass erase command
5EH = Flash Sector Protect reg
select
SM Configuration Indicator
Flash Status
FSTAT (FF8H - Read Only)
Page Select
FPS (FF9H - Read/Write)
Flash Sector Protect
FPROT (FF9H - Read/Write to 1’s)
Flash Frequency High Byte
FFREQH (FFAH - Read/Write)
Flash Frequency Low Byte
FFREQL (FFBH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Z8 Encore! XP
Flash Controller Status
00_0000 = Flash controller locked
00_0001 = First unlock received
00_0010 = Second unlock received
00_0011 = Flash controller unlocked
00_0100 = Flash Sector Protect
register
00_1xxx = Programming in progress
01_0xxx = Page erase in progress
10_0xxx = Mass erase in progress
Reserved
Flash Frequency value [15:8]
Flash Frequency value [7:0]
Page Select [6:0]
Identifies the Flash memory page for
Page Erase operation.
Information Area Enable
0 = Information Area access is
disabled
1 = Information Area access is
enabled
Flash Sector Protect [7:0]
0 = Sector can be programmed or
1 = Sector is protected and cannot
be
user
erased from user code
Product Specification
programmed or erased from
code
Control Register Summary
selected
®
F64XX Series
43
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