SMJ320VC5416HFGW10 Datasheet, PDF (23/96 Pages) Texas Instruments – Fixed-Point Digital Signal Processor

Functional Overview
3.5
Memory Map
Hex
0000
007F
0080
7FFF
8000
Page 0 Program
Reserved
(OVLY = 1)
External
(OVLY = 0)
On-Chip
DARAM0--3
(OVLY = 1)
External
(OVLY = 0)
External
FF7F
FF80
Interrupts
(External)
FFFF
MP/MC= 1
(Microprocessor Mode)
Hex ^{Page 0 Program}
0000
Reserved
(OVLY = 1)
007F
External
(OVLY = 0)
0080 On-Chip
DARAM0--3
(OVLY = 1)
7FFF
8000
BFFF
External
(OVLY = 0)
External
C000 _{On-Chip ROM}
FEFF (4K x 16-bit)
FF00
FF7F
Reserved
FF80
FFFF
Interrupts
(On-Chip)
MP/MC= 0
(Microcomputer Mode)
Hex
Data
0000
Memory-Mapped
005F ^Registers
0060
007F
0080
7FFF
Scratch-Pad
RAM
On-Chip
DARAM0--3
(32K x 16-bit)
8000
FFFF
On-Chip
DARAM4--7
(DROM=1)
or
External
(DROM=0)
Address ranges for on-chip DARAM in data memory are:
DARAM0: 0080h--1FFFh;
DARAM2: 4000h--5FFFh;
DARAM4: 8000h--9FFFh;
DARAM6: C000h--DFFFh;
DARAM1: 2000h--3FFFh
DARAM3: 6000h--7FFFh
DARAM5: A000h--BFFFh
DARAM7: E000h--FFFFh
Figure 3--2. Program and Data Memory Map
Hex Program
010000
On-Chip
DARAM0--3
(OVLY=1)
External
017FFF ^(OVLY=0)
Hex Program
020000
On-Chip
DARAM0--3
(OVLY=1)
External
027FFF ^(OVLY=0)
Hex Program
030000
On-Chip
DARAM0--3
(OVLY=1)
External
037FFF ^(OVLY=0)
018000 _On-Chip
DARAM4--7
(MP/MC=0)
External
(MP/MC=1)
028000 _On-Chip
SARAM0--3
(MP/MC=0)
External
(MP/MC=1)
038000 _On-Chip
SARAM4--7
(MP/MC=0)
External
(MP/MC=1)
01FFFF
02FFFF
03FFFF
Page 1
XPC=1
Page 2
XPC=2
Page 3
XPC=3
Address ranges for on-chip DARAM in program memory are:
Address ranges for on-chip SARAM in program memory are:
Hex Program
040000
On-Chip
DARAM0--3
(OVLY=1)
External
047FFF ^(OVLY=0)
048000
External
......
04FFFF
Page 4
XPC=4
DARAM4: 018000h--019FFFh;
DARAM6: 01C000h--01DFFFh;
SARAM0: 028000h--029FFFh;
SARAM2: 02C000h--02DFFFh;
SARAM4: 038000h--039FFFh;
SARAM6: 03C000h--03DFFFh;
Hex Program
7F0000
On-Chip
DARAM0--3
(OVLY=1)
External
7F7FFF ^(OVLY=0)
7F8000
External
7FFFFF
Page 127
XPC=7Fh
DARAM5: 01A000h--01BFFFh
DARAM7: 01E000h--01FFFFh
SARAM1: 02A000h--02BFFFh
SARAM3: 02E000h--02FFFFh
SARAM5: 03A000h--03BFFFh
SARAM7: 03E000h--03FFFFh
Figure 3--3. Extended Program Memory Map
April 2003 -- Revised July 2003
SGUS035A
13