MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 70

• Manufacturer Part Number: MC68HC908LK24
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

FLASH Memory (FLASH)
4.3 Functional Description
Data Sheet
70
# Non-volatile FLASH register; write by programming.
$FFCF
Addr.
$FE08
FLASH Control Register
FLASH Block Protect
Register Name
NOTE:
(FLBPR)
Register
(FLCR)
#
The FLASH memory consists of an array of 24,576 bytes for user
memory plus a block of 48 bytes for user interrupt vectors. An erased bit
reads as logic 1 and a programmed bit reads as a logic 0. The FLASH
memory page size is defined as 128 bytes, and is the minimum size that
can be erased in a page erase operation. Program and erase operations
are facilitated through control bits in FLASH control register (FLCR). The
address ranges for the FLASH memory are:
Programming tools are available from Motorola. Contact your local
Motorola representative for more information.
A security feature prevents viewing of the FLASH contents.
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
Reset:
Reset:
Read:
Write:
Read:
Write:
Figure 4-1. FLASH I/O Register Summary
Freescale Semiconductor, Inc.
•
•
For More Information On This Product,
$9000–$EFFF; user memory, 24,576 bytes
$FFD0–$FFFF; user interrupt vectors, 48 bytes
BPR7
Bit 7
0
0
Go to: www.freescale.com
FLASH Memory (FLASH)
= Unimplemented
BPR6
6
0
0
BPR5
5
0
0
Unaffected by reset; $FF when blank
BPR4
4
0
0
HVEN
BPR3
3
0
MC68HC908LJ24/LK24 — Rev. 2
MASS
BPR2
2
0
ERASE
BPR1
1
0
1
MOTOROLA
BPR0
PGM
Bit 0
0