參數(shù)資料
型號(hào): TMS320LC546
廠商: Texas Instruments, Inc.
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: Digital Signal Processors(20/25ns指令周期, 高性能,大并行度,特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的DSP)
中文描述: 數(shù)字信號(hào)處理器(20/25ns指令周期,高性能,大并行度,特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的數(shù)字信號(hào)處理器)
文件頁(yè)數(shù): 27/107頁(yè)
文件大?。?/td> 2149K
代理商: TMS320LC546
TMS320C54x, TMS320LC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039A – FEBRUARY 1996 – REVISED JULY 1997
24
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
memory (continued)
Program
Hex
0000
Data
External
Program
On-Chip DARAM
(OVLY=1)
or
External (OVLY=0)
External
MP/MC= 0
(Microcomputer Mode)
MP/MC= 1
(Microprocessor Mode)
007F
0080
7FFF
8000
005F
0060
Reserved
(OVLY=1)
or
External (OVLY=0)
On-Chip ROM
(2K Words)
Interrupts and
Reserved
(On-Chip)
Scratch-Pad RAM
EFFF
F000
FFFF
FF80
Hex
0000
FF7F
On-Chip SARAM
(OVLY=1)
or
External (OVLY=0)
1FFF
2000
On-Chip DARAM
(OVLY=1)
or
External (OVLY=0)
007F
0080
7FFF
8000
Reserved
(OVLY=1)
or
External (OVLY=0)
On-Chip SARAM
(OVLY=1)
or
External (OVLY=0)
1FFF
2000
Reserved
Interrupts and
Reserved
(External)
FFFF
FF80
FF7F
F800
F7FF
External
FFFF
Hex
0000
On-Chip DARAM
(8K Words)
007F
0080
7FFF
8000
Memory-Mapped
Registers
On-Chip SARAM
(24K Words)
1FFF
2000
Figure 4. Memory Map (’LC548)
(In the case of a 64K Program Word Address Reach)
Page 0
32K
Words
xx 0000
xx 7FFF
Page 1
32K
Words
01 0000
01 FFFF
Page 2
32K
Words
02 0000
02 FFFF
Page 127
32K
Words
7F 0000
7F FFFF
Page 0
32K
Words
00 8000
00 FFFF
Page 1
32K
Words
01 8000
01 FFFF
Page 2
32K
Words
02 8000
02 FFFF
Page 127
32K
Words
7F 8000
7F FFFF
XPC = 0
XPC = 1
XPC = 2
XPC = 127
See Figure 4 for more information about this on-chip memory region.
These pages available when OVLY = 0. When OVLY = 1 the first 32K words are all on page 0.
NOTE A: When the on-chip RAM is enabled in program space, all accesses to the region xx 0000 – xx 7FFF, regardless of page number, are
mapped to the on-chip RAM at 00 0000 – 00 7FFF.
Figure 5. Extended Program Memory (’LC548 only)
A
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