參數(shù)資料
型號： TMS320LC545
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
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現(xiàn)多種復(fù)雜算法及應(yīng)用的DSP)
中文描述： 數(shù)字信號處理器（20/25ns指令周期，高性能，大并行度，特殊指令集可有效實現(xiàn)多種復(fù)雜算法及應(yīng)用的數(shù)字信號處理器）
文件頁數(shù)： 32/107頁
文件大?。?/td> 2149K
代理商： TMS320LC545
TMS320C54x, TMS320LC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039A – FEBRUARY 1996 – REVISED JULY 1997
29
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
serial ports (continued)
Table 3 provides a comparison of the serial ports available in the ’C54x/’LC54x generation devices.
Table 3. Serial Port Configurations for the ’C54x/’LC54x
DEVICE
STANDARD
SERIAL PORT
BSP AND ADDRESS RANGE
TDM SERIAL PORT
TMS320C541
2
TMS320LC541
2
TMS320C542
1 (0800h–0FFFh)
1
TMS320LC542
1 (0800h–0FFFh)
1
TMS320LC543
1 (0800h–0FFFh)
1
TMS320LC545
1
1 (0800h–0FFFh)
TMS320LC545A
1
1 (0800h–0FFFh)
TMS320LC546
1
1 (0800h–0FFFh)
TMS320LC546A
1
1 (0800h–0FFFh)
TMS320LC548
2 (0800h–0FFFh
and 1800h–1FFFh)
1
hardware timer
The ’C54x/’LC54x devices feature a 16-bit timing circuit with a four-bit prescaler. The timer counter is
decremented by one at every CLKOUT cycle. Each time the counter decrements to zero, a timer interrupt is
generated. The timer can be stopped, restarted, reset, or disabled by specific status bits.
clock generator
The clock generator provides clocks to the ’54x device, and consists of an internal oscillator and a phase-locked
loop (PLL) circuit. The clock generator requires a reference clock input, which can be provided by using a crystal
resonator with the internal oscillator, or from an external clock source. The reference clock input is then either
divided by two (or by four on the ’545A, ’546A, and ’LC548) to generate clocks for the ’54x device, or the PLL
circuit can be used to generate the device clock by multiplying the reference clock frequency by a scale factor,
allowing use of a clock source with a lower frequency than that of the CPU.
The PLL is an adaptive circuit that, once synchronized, locks onto and tracks an input clock signal. When the
PLL is initially started, it enters a transitional mode during which the PLL acquires lock with the input signal. Once
the PLL is locked, it continues to track and maintain synchronization with the input signal. Then, other internal
clock circuitry allows the synthesis of new clock frequencies for use as master clock for the ’54x device.
Two types of PLL are available: a hardware-programmable PLL and a software-programmable PLL. All ’54x
devices have the hardware-programmable PLL except the ’545A, ’546A, and ’LC548, which have the
software-programmable PLL. On the hardware-programmable PLL, an external delay must be provided before
the device is released from reset in order for the PLL to achieve lock. With the software-programmable PLL,
a lock timer is provided to implement this delay automatically.
A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320LC545APBK-50 功能描述:IC FIXED POINT DSP 128-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:TMS320C54x 標準包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點 接口:I²C，McASP，McBSP 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA（27x27） 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA
TMS320LC545APBK-66 功能描述:IC FIXED POINT DSP 128-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:TMS320C54x 標準包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤
TMS320LC546APZ-50 功能描述:IC FIXED POINT DSP 100-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:TMS320C54x 標準包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤
TMS320LC546APZ-66 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TMS320LC548GGU-66 功能描述:數(shù)字信號處理器和控制器 - 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 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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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