Lucent Technologies MN102F85K User Manual
MN102HF75K Flash EEPROM Version
Using the Onboard Serial Programming Mode
MN102H75K/F75K/85K/F85K LSI User Manual
Panasonic Semiconductor Development Company
323
Panasonic
B.4.4
Microcontroller Memory Map Used During Onboard
Serial Programming
Serial Programming
B.4.4.1 Flash ROM Address Space
■
Serial writer load program area
This kilobyte of ROM, starting at address x’0x80000’, holds the load program
for the serial writer. This area is write-protected in the hardware. Panasonic
provides the load program.
provides the load program.
■
Fixed user program area
These 7 kilobytes of ROM starting at address x’0x80400’, hold the fixed user
program. This area is write-protected in the hardware. (You can program this area
with a parallel writer.)
with a parallel writer.)
■
Security code
This byte holds the password for the serial writer. Enter an 8-character ASCII
code in this space.
code in this space.
■
Reserved area
Do not write to this area.
■
Branch instruction to reset service routine
Normally, reset servicing starts at address x’0x80000’, but the soft branch
instruction in the serial writer load program branches to x’0x82010’. This
address must hold a JMP instruction pointing to the real start address for the reset
address must hold a JMP instruction pointing to the real start address for the reset
service routine.
Table B-4 Flash ROM Address Space in Serial Programming Mode
Address
Size
Description
x’0x80000’
|
x’0x803FF’
1 KB
Serial writer load program area
x’0x80400’
|
|
x’0x81FFF’
7 KB
Fixed user program area
x’0x82000’
|
x’0x82007’
8 bytes
Security code
x’0x82008’
|
x’0x8200F’
8 bytes
Reserved area
x’0x82010’
|
x’0x82017’
8 bytes
Branch instruction to reset service routine
(Ex., JMP 82100)
x’0x82018’
|
x’0x8201F’
8 bytes
Branch instruction to interrupt service routine
(Ex., JMP 82200)
x’0x82020’
|
|
x’0xBFFFF’
248 KB
User program area