參數(shù)資料
型號(hào): TMS320LC57S
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processors(35/50ns指令周期,并行邏輯單元,可編程PLL,全雙工同步串行口的DSP)
中文描述: 數(shù)字信號(hào)處理器(35/50ns指令周期,并行邏輯單元,可編程鎖相環(huán),全雙工同步串行口的數(shù)字信號(hào)處理器)
文件頁(yè)數(shù): 23/87頁(yè)
文件大?。?/td> 1864K
代理商: TMS320LC57S
TMS320C5x, TMS320LC5x
DIGITAL SIGNAL PROCESSORS
SPRS030A – APRIL 1995 – REVISED APRIL 1996
23
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
is a 512-word block which can be configured as data or program memory. The CLRC CNF (configure B0 as data
memory) and SETC CNF (configure B0 as program memory) instructions allow dynamic configuration of the
memory maps through software. When using block 0 as program memory, instructions can be downloaded from
external program memory into on-chip RAM and then executed.
When using on-chip RAM, ROM, or high-speed external memory, the ’C5x runs at full speed with no wait states.
The ability of the DARAM to allow two accesses to be performed in one cycle, coupled with the parallel nature
of the ’C5x architecture, enables the device to perform three concurrent memory accesses in any given machine
cycle. Externally, the READY line can be used to interface the ’C5x to slower, less expensive external memory.
Downloading programs from slow off-chip memory to on-chip RAM can speed processing while cutting system
costs.
Program
Interrupts and
Reserved
(external)
Hex
0000
Data
External
Interrupts and
Reserved
(on-chip)
On-Chip
ROM
External
Program
On-Chip SARAM
(RAM = 1)
External
(RAM = 0)
External
MP/MC = 0
(microcomputer mode)
MP/MC = 1
(microprocessor mode)
On-Chip DARAM B0
(CNF = 1)
External (CNF = 0)
003F
0040
07FF
0800
2BFF
2C00
FDFF
FE00
FFFF
0000
003F
0040
07FF
0800
2BFF
2C00
FDFF
FE00
FFFF
0000
005F
0060
007F
0080
0100
02FF
0300
2C00
FFFF
00FF
04FF
0500
07FF
0800
2BFF
Memory-Mapped
Registers
On-Chip
DARAM B2
Reserved
On-Chip
DARAM B1
Reserved
On-Chip SARAM
(OVLY = 1)
External (OVLY = 0)
External
On-Chip DARAM B0
(CNF = 0)
Reserved (CNF = 1)
Hex
Hex
On-Chip SARAM
(RAM = 1)
External
(RAM = 0)
On-Chip DARAM B0
(CNF = 1)
External (CNF = 0)
Figure 1. TMS320C50 and TMS320LC50 Memory Map
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