Memory
Organization
00-7F
80-FF
80-FF
RAM, Access it via direct addressing
SFR, Access it via direct addressing
indirect on-chip RAM,
Access it via indirect addressing
On-Chip External auxiliary RAM.
0000-00FF
MEGAWIN
00
0000
AP
Memory
Address Space for MPC82x54A embedded Flash memory
80
7F
Address Space for MPC82x54A RAM
FF
0000 – xxxx
:=
User’s Application
xxxx is determined by
OR1[7:0]
xxxx – yyyy
:=
Memory for In-Application-
Programming data
xxxx is determined by
OR1[7:0]
yyyy – 3DFF
:=
Memory for In-System-
Programming code
yyyy is determined by
OR0[5:4]
ISP
IAP
Memory
Memory
3DFF
MPC82x54A Data Sheet
xxxx
yyyy
15
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
