MC68HC908JG16FA MOTOROLA [Motorola, Inc], MC68HC908JG16FA Datasheet - Page 60
MC68HC908JG16FA
Manufacturer Part Number
MC68HC908JG16FA
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908JG16FA.pdf
(324 pages)
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FLASH Memory
4.5 FLASH Block Erase Operation
Technical Data
60
NOTE:
NOTE:
Use the following procedure to erase a block of FLASH memory. A block
consists of 512 consecutive bytes starting from addresses $X000,
$X200, $X400, $X600, $X800, $XA00, $XC00 or $XE00. The 48-byte
user interrupt vectors area also forms a block. Any block within the 16K
bytes user memory area ($BA00–$F9FF) can be erased alone.
The 48-byte user interrupt vectors, $FFD0–$FFFF, cannot be erased by
the block erase operation because of security reasons. Mass erase is
required to erase this block.
Programming and erasing of FLASH locations cannot be performed by
code being executed from the FLASH memory. While these operations
must be performed in the order as shown, but other unrelated operations
may occur between the steps.
1. Set the ERASE bit and clear the MASS bit in the FLASH control
2. Write any data to any FLASH address within the address range of
3. Wait for a time, t
4. Set the HVEN bit.
5. Wait for a time t
6. Clear the ERASE bit.
7. Wait for a time, t
8. Clear the HVEN bit.
9. After time, t
Freescale Semiconductor, Inc.
For More Information On This Product,
register.
the block to be erased.
again.
Go to: www.freescale.com
FLASH Memory
rcv
(1 s), the memory can be accessed in read mode
Erase
nvs
nvh
(5 s).
(5 s).
(10ms).
MC68HC908JG16
MOTOROLA
—
Rev. 1.0
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