Panasonic MN101C77C, F77G user manual This section describes each memory space of Flash Eeprom

Chapter 18 Flash EEPROM

This section describes each memory space of Flash EEPROM.

X'04000'

Load Program Area

X'040C0+n'

Fixed User Program Area

X'06000'

Security Code

X'06008'

Branch Instruction for branching to Reset Start Routine

X'0600C'

Branch Instruction for branching to Interrupt Service Routine

X'06088'

User Program Area

X'23FFF'

Figure 18-6-2 Flash EEPROM Memory map

Block 0

Do not program this area

with serial writer

*1 Security code can be set to any 8-bit area between x'06000' to x'07FFF'.

xSerial writer load program area	(x'04000 to X'040C0+n')
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.
xFixed user program area	(x'040C0+n' to X'05FFF')
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.
xSecurity code	(x'06000 to X'07FFF')

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'.

xBranch instruction to reset service routine (x'06008')

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.

xBranch instruction to interrupt service routine (x'0600C' to X'06087')

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' ⇒	x'0600C', x'04008' ⇒	x'06010', .... x'04078' ⇒	x'06080'
xUser program area	(x'06088' to X'23FFF')
This area stores the user program.

XVIII-14Onboard Serial Interface Programming Mode