mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 60

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

FLASH Memory
4.3 Functional Description
Technical Data
60
$FE08
$FE09
Addr.
FLASH Control Register
Register Name
FLASH Block Protect
NOTE:
(FLBPR)
Register
(FLCR)
The FLASH memory consists of an array of 16,384 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 is block erasable. The minimum erase block size is 512 bytes.
Program and erase operation operations are facilitated through control
bits in FLASH Control Register (FLCR).The address ranges for the
FLASH memory are shown as follows:
Programming tools are available from Freescale. Contact your local
Freescale representative for more information.
A security feature prevents viewing of the FLASH contents.
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 4-1. FLASH I/O Register Summary
•
•
$BA00–$F9FF (user memory, 16,384 bytes)
$FFD0–$FFFF (user interrupt vectors, 48 bytes)
BPR7
Bit 7
0
0
0
= Unimplemented
BPR6
FLASH Memory
6
0
0
0
BPR5
5
0
0
0
BPR4
4
0
0
0
HVEN
BPR3
3
0
0
MC68HC908JB16
MASS
BPR2
Freescale Semiconductor
0
0
2
ERASE
BPR1
1
0
0
1
—
Rev. 1.1
BPR0
Bit 0
PGM
0
0