Panasonic F77G User Manual page 538

Chapter 18 Flash EEPROM
This section describes each memory space of Flash EEPROM.
X'04000'
X'040C0+n'
X'06000'
X'06008'
X'0600C'
X'06088'
X'23FFF'
*1 Security code can be set to any 8-bit area between x'06000' to x'07FFF'.
Serial writer load program area
This KB of ROM at address x'04000' to n KB holds the load program for the serial writer.
You need a PROM writer to write/erase this space.
Fixed user program area
This KB of ROM at address x'040C0+n' to X'05FFF' holds the fixed user program.
You need a PROM writer to write/erase this space.
Security code
These bytes holds the password for the serial writer.
The code can be set to any 8-bit area between x'06000' to x'07FFF'.
Branch instruction to reset service routine
Normally, reset servicing starts at address x'04000', but the soft branch instruction in the serial writer
load program branches to x'06008'. This address must hold a JMP instruction pointing to the real start
address for the reset service routine.
Branch instruction to interrupt service routine
Normally, interrupt servicing starts at address x'04004', but the soft branch instruction in the serial writer
load program branches to x'0600C'. This address must hold a JMP instruction pointing to the real start
address for the interrupt service routine
x'04004'
User program area
This area stores the user program.
XVIII - 14
Onboard Serial Interface Programming Mode
Load Program Area
Fixed User Program Area
Security Code
Branch Instruction for branching to Reset Start Routine
Branch Instruction for branching to Interrupt Service Routine
User Program Area
Figure 18-6-2 Flash EEPROM Memory map
(x'04000 to X'040C0+n')
(x'040C0+n' to X'05FFF')
(x'06000 to X'07FFF')
x'0600C', x'04008'
(x'06088' to X'23FFF')
(x'06008')
(x'0600C' to X'06087')
x'06010', .... x'04078'
Block 0
Do not program
this area
with serial writer
x'06080'