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參數(shù)資料
| 型號(hào)： | TMS320C2812ZHHS |
| 廠(chǎng)商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 數(shù)字信號(hào)處理 |
| 英文描述： | 16-BIT, 150 MHz, OTHER DSP, PBGA179 |
| 封裝： | LEAD FREE, BGA-179 |
| 文件頁(yè)數(shù)： | 89/156頁(yè) |
| 文件大?。?/td> | 1826K |
| 代理商： | TMS320C2812ZHHS |
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Functional Overview
38
April 2001 Revised October 2005
SPRS174M
TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED
DAMAGES INCLUDE, BUT ARE NOT LIMITED TO LOSS OF DATA, LOSS OF
GOODWILL, LOSS OF USE OR INTERRUPTION OF BUSINESS OR OTHER
ECONOMIC LOSS.
3.2.12
Peripheral Interrupt Expansion (PIE) Block
The PIE block serves to multiplex numerous interrupt sources into a smaller set of interrupt inputs. The PIE
block can support up to 96 peripheral interrupts. On the F281x and C281x, 45 of the possible 96 interrupts
are used by peripherals. The 96 interrupts are grouped into blocks of 8 and each group is fed into 1 of 12 CPU
interrupt lines (INT1 to INT12). Each of the 96 interrupts is supported by its own vector stored in a dedicated
RAM block that can be overwritten by the user. The vector is automatically fetched by the CPU on servicing
the interrupt. It takes 8 CPU clock cycles to fetch the vector and save critical CPU registers. Hence the CPU
can quickly respond to interrupt events. Prioritization of interrupts is controlled in hardware and software. Each
individual interrupt can be enabled/disabled within the PIE block.
3.2.13
External Interrupts (XINT1, XINT2, XINT13, XNMI)
The F281x and C281x support three masked external interrupts (XINT1, 2, 13). XINT13 is combined with one
non-masked external interrupt (XNMI). The combined signal name is XNMI_XINT13. Each of the interrupts
can be selected for negative or positive edge triggering and can also be enabled/disabled (including the
XNMI). The masked interrupts also contain a 16-bit free running up counter, which is reset to zero when a valid
interrupt edge is detected. This counter can be used to accurately time stamp the interrupt.
3.2.14
Oscillator and PLL
The F281x and C281x can be clocked by an external oscillator or by a crystal attached to the on-chip oscillator
circuit. A PLL is provided supporting up to 10-input clock-scaling ratios. The PLL ratios can be changed
on-the-fly in software, enabling the user to scale back on operating frequency if lower power operation is
desired. Refer to the Electrical Specification section for timing details. The PLL block can be set in bypass
mode.
3.2.15
Watchdog
The F281x and C281x support a watchdog timer. The user software must regularly reset the watchdog counter
within a certain time frame; otherwise, the watchdog will generate a reset to the processor. The watchdog can
be disabled if necessary.
3.2.16
Peripheral Clocking
The clocks to each individual peripheral can be enabled/disabled to reduce power consumption when a
peripheral is not in use. Additionally, the system clock to the serial ports (except eCAN) and the event
managers, CAP and QEP blocks can be scaled relative to the CPU clock. This enables the timing of
peripherals to be decoupled from increasing CPU clock speeds.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS320C28341 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Delfino Microcontrollers |
| TMS320C28341ZEPQ | 制造商:Texas Instruments 功能描述:DELFINO MICROCONTROLLER - Trays |
| TMS320C28341ZFEQ | 功能描述:32位微控制器 - MCU Delfino MCU RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| TMS320C28341ZFET | 功能描述:32位微控制器 - MCU Delfino MCU RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| TMS320C28341ZHHT | 功能描述:32位微控制器 - MCU Delfino MCU RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
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