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MC68HC08AS32A Datasheet(PDF) 48 Page - Motorola, Inc

No. de Pieza. MC68HC08AS32A
Descripción  Microcontrollers
Descarga  296 Pages
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Fabricante  MOTOROLA [Motorola, Inc]
Página de inicio  http://www.freescale.com
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MC68HC08AS32A Datasheet(HTML) 48 Page - Motorola, Inc

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Memory
Data Sheet
MC68HC08AS32A — Rev. 1
48
Memory
MOTOROLA
2.5.2.2 EEPROM Array Configuration Register
The EEPROM array configuration register configures EEPROM security and
EEPROM block protection. This read-only register is loaded with the contents of
the EDEPROM non-volatile register (EENVR) after a reset.
Bits 7:5 — Unused Bits
These read/write bits are software programmable but have no functionality.
EEPRTCT — EEPROM Protection Bit
The EEPRTCT bit is used to enable the security feature in the EEPROM (see
2.5.1.3 EEPROM Program/Erase Protection).
1 = EEPROM security disabled
0 = EEPROM security enabled
NOTE:
This feature is a write-once feature. Once the protection is enabled it may not be
disabled.
EEEBP[3:0] — EEPROM Block Protection Bits
These bits prevent blocks of EEPROM array from being programmed or erased.
1 = EEPROM array block is protected
0 = EEPROM army block is unprotected
Address: $FE1F
Bit 7
6
5
4
3
2
1
Bit 0
Read:
UNUSED
UNUSED
UNUSED
EEPRTCT
EEBP3
EEBP2
EEBP1
EEBP0
Write:
Reset:
Contents of EENVR ($FE1C)
= Unimplemented
Figure 2-4. EEPROM Array Configuration Register (EEACR)
Block Number (EEBPx)
Address Range
EEBP0
$0800—$087F
EEBP1
$0880–$08FF
EEBP2
$0900–$097F
EEBP3
$0980–$09FF
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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