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參數(shù)資料
| 型號(hào)： | TMS320LC542-50 |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | Digital Signal Processor |
| 中文描述： | 數(shù)字信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 27/111頁(yè) |
| 文件大?。?/td> | 1426K |
| 代理商： | TMS320LC542-50 |
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TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
27
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
extended program memory (’548 and ’549 only) (continued)
Six new instructions for addressing extended program memory space:
–
FB[D] — Far branch
–
FBACC[D] — Far branch to the location specified by the value in accumulator A or accumulator B
–
FCALA[D] — Far call to the location specified by the value in accumulator A or accumulator B
–
FCALL[D] — Far call
–
FRET[D] — Far return
–
FRETE[D] — Far return with interrupts enabled
Two ’54x instructions are extended to use the 23 bits in the ’548 and ’549 devices:
–
READA — Read program memory addressed by accumulator A and store in data memory
–
WRITA — Write data to program memory addressed by accumulator A
For more information on these six new instructions and the two extended instructions, refer to the instruction
set summary table in this data sheet and to the TMS320C54x DSP Reference Set, Volume 2, Mnemonic
Instruction Set literature number SPRU172. And for more information on extended program memory, refer to
the TMS320C54x DSP Reference Set, Volume 1, CPU and Peripherals literature number SPRU131.
data memory
The data memory space on the ’54x device addresses contains up to 64K of 16-bit words. The ’devices
automatically access the on-chip RAM when addressing within its bounds. When an address is generated
outside the RAM bounds, the device automatically generates an external access.
The advantages of operating from on-chip memory are as follows:
Higher performance because no wait states are required
Higher performance because of better flow within the pipeline of the CALU
Lower cost than external memory
Lower power than external memory
The advantage of operating from off-chip memory is the ability to access a larger address space.
bootloader
A bootloader is available in the standard ’54x on-chip ROM. This bootloader can be used to transfer user code
from an external source to anywhere in the program memory at power up automatically. If MP/MC of the device
is sampled low during a hardware reset, execution begins at location FF80h of the on-chip ROM. This location
contains a branch instruction to the start of the bootloader program. The standard ’54x devices provide different
ways to download the code to accommodate various system requirements:
Parallel from 8-bit or 16-bit-wide EPROM
Parallel from I/O space 8-bit or 16-bit mode
Serial boot from serial ports 8-bit or 16-bit mode
Host-port interface boot (’542, ’545, ’548, and ’549 devices only)
Warm boot
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS320LC542PBK1-50 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320LC542PBK2-50 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320LC542PGE1-40 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320LC542PGE1-50 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320LC542PGE2-40 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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