Address Space - Panasonic MN101L Series User Manual

2.1.7

Address Space

Figure:2.1.5 shows the address space in CPU.
The CPU has 12 KB of RAM area (Max.) and 112 KB of ROM area (Max.).
This LSI has 4 KB of RAM and 64 KB of ROM.
The instruction access can be used as linear address space except Special function register space. The data access
needs bank specification in every 64 KB. (The initial value is first 64 KB space (0x00000 to 0x0FFFF)).
The data area consists of an area of 256 bytes (beginning at "0x00000") that supports efficient accesses with RAM
short addressing and an special function area of 256 bytes (beginning at "0x03F00") that supports efficient
accesses with I/O short addressing.
BANK0
BANK1
0x00000
RAM short addressing area
256 B
0x00100
0x01000
16 KB
0x03000
Special function register area
4 KB
0x03F00
256 B
0x04000
128 B
0x04080
64 B
0x040C0
48 KB
0x04100
0x04900
0x10000
0x13FFF
64 KB
0x1FFFF
Figure:2.1.5 Address Space
Internal RAM(4 KB)
Data
I/O short addressing area
Interrupt
vector table
Subroutine
vector table
Instruction code
Data
Internal ROM(64 KB)
Instruction code/
Table data
Chapter 2
CPU
Overview II - 7