M32000D4BFP-80 Datasheet, PDF (14/44 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
M32000D4BFP-80
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
Address space
The M32000D4BFP-80 logical address is 32-bit wide and offers 4
GB linear space. The M32000D4BFP-80 has address spaces allo-
cated as shown below.
The user space is specified by SID = 0 (H'0000 0000 to H'7FFF FFFF).
The area available to the user is 16 MB from address H'0000 0000
to address H'00FF FFFF.
The I/O space is specified by SID = 1 (H'8000 0000 to H'FFFF FFFF).
The area available to the user is 16 MB from address H'FF00 0000
to address H'FFFF FFFF. The I/O space cannot be cached.
These areas below are allocated in each space.
• User space
internal DRAM area
external area
• I/O space
user I/O area
system area
internal I/O area
< logical space >
logical address
H'0000 0000
(16M bytes)
< physical space >
EIT vector entry
(except for reset interrupt)
logical address
physical address
SID
(24 bits)
H'0000 0000
H'001F FFFF
H'0020 0000
internal DRAM
area (2M bytes)
0 : H'00 0000
0 : H'1F FFFF
0 : H'20 0000
user space
(SID = 0)
external area
(14M bytes)
H'7FFF FFFF
H'8000 0000
I/O space
(SID = 1)
(16M bytes)
H'FFFF FFFF
Fig. 9 Address space
H'00FF FFFF
0 : H'FF FFFF
EIT vector entry
(reset interrupt)
logical address
H'FF00 0000
physical address
SID
(24 bits)
1 : H'00 0000
user I/O area
(8M bytes)
H'FF7F FFFF
H'FF80 0000
H'FFBF FFFF
H'FFC0 0000
H'FFFF FFFF
system area
(4M bytes)
1 : H'7F FFFF
1 : H'80 0000
1 : H'BF FFFF
1 : H'C0 0000
internal I/O area
(4M bytes)
1 : H'FF FFFF
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