MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 74
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MC908AZ60ACFU
Manufacturer Part Number
MC908AZ60ACFU
Description
IC MCU FLASH 8.4MHZ 60K 64QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AZ60ACFU
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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EEPROM-1 Memory
6.4.3 EEPROM-1 Program/Erase Protection
The EEPROM has a special feature that designates the 16 bytes of addresses from $08F0 to $08FF to
be permanently secured. This program/erase protect option is enabled by programming the EEPRTCT
bit in the EEPROM-1 Nonvolatile Register (EE1NVR) to a logic zero.
Once the EEPRTCT bit is programmed to 0 for the first time:
6.4.4 EEPROM-1 Block Protection
The 512 bytes of EEPROM-1 are divided into four 128-byte blocks. Each of these blocks can be protected
from erase/program operations by setting the EEBPx bit in the EE1NVR.
ranges for the blocks.
These bits are effective after a reset or a upon read of the EE1NVR register. The block protect
configuration can be modified by erasing/programming the corresponding bits in the EE1NVR register
and then reading the EE1NVR register. Please see
more information.
74
•
•
•
•
•
Programming and erasing of secured locations $08F0 to $08FF is permanently disabled.
Secured locations $08F0 to $08FF can be read as normal.
Programming and erasing of EE1NVR is permanently disabled.
Bulk and Block Erase operations are disabled for the unprotected locations $0800-$08EF,
$0900-$09FF.
Single byte program and erase operations are still available for locations $0800-$08EF and
$0900-$09FF for all bytes that are not protected by the EEPROM-1 Block Protect EEBPx bits (see
6.4.4 EEPROM-1 Block Protection
Once armed, the protect option is permanently enabled. As a consequence,
all functions in the EE1NVR will remain in the state they were in
immediately before the security was enabled.
Once EEDIVSECD in the EE1DIVHNVR is programmed to 0 and after a
system reset, the EE1DIV security feature is permanently enabled because
the EEDIVSECD bit in the EE1DIVH is always loaded with 0 thereafter.
Once this security feature is armed, erase and program mode are disabled
for EE1DIVHNVR and EE1DIVLNVR. Modifications to the EE1DIVH and
EE1DIVL registers are also disabled. Therefore, be cautious on
programming a value into the EE1DIVHNVR.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Block Number (EEBPx)
Table 6-1. EEPROM-1 Array Address Blocks
EEBP0
EEBP1
EEBP2
EEBP3
and
6.5.2 EEPROM-1 Array Configuration
NOTE
NOTE
6.5.2 EEPROM-1 Array Configuration Register
Address Range
$0800–$087F
$0880–$08FF
$0900–$097F
$0980–$09FF
Table 6-1
Freescale Semiconductor
shows the address
Register)
for
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