C8051F712-GMR Silicon Labs, C8051F712-GMR Datasheet - Page 159
C8051F712-GMR
Manufacturer Part Number
C8051F712-GMR
Description
8-bit Microcontrollers - MCU 8kB 32B EEPROM ADC Cap Sense
Manufacturer
Silicon Labs
Datasheet
1.C8051F709-GQR.pdf
(306 pages)
Specifications of C8051F712-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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SFR Definition 23.4. EEKEY: EEPROM Protect Key
SFR Address = 0xC6; SFR Page = F
Name
Reset
Bit
7:0
1:0
Type
Bit
EEPSTATE
EEKEY
Name
7
0
EEPROM Key.
Protects the EEPROM from
inadvertent writes and
erases.
EEPROM Protection State.
These bytes show whether
Flash writes/erases have
been enabled, disabled, or
locked.
6
0
Description
5
0
EEKEY
W
Rev. 1.0
4
0
The sequence 0x55
0xAA must be written to
enable EEPROM writes
and erases
3
0
Write
C8051F70x/71x
2
0
00: Write/Erase is not
enabled
01: The first key has
been written
10: Write/Erase is
enabled
11: EEPROM is locked
from further
writes/erases
EEPSTATE/EEKEY
1
0
Read
R/W
0
0
159
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