參數(shù)資料
型號: SM320F28335GHHAEP
廠商: Texas Instruments
文件頁數(shù): 122/167頁
文件大?。?/td> 0K
描述: IC DIGITAL SIGNAL CTLR 179-BGA
產(chǎn)品培訓(xùn)模塊: ControlSUITE
Motor Signal Chain Overview
TPS75005 Single IC Power for C2000 MCU
標(biāo)準(zhǔn)包裝: 189
系列: TMS320F28x3x Delfino™, C2000™
核心處理器: C28x
芯體尺寸: 32-位
速度: 150MHz
連通性: CAN,EBI/EMI,I²C,McBSP,SCI,SPI,UART/USART
外圍設(shè)備: DMA,POR,PWM,WDT
輸入/輸出數(shù): 88
程序存儲器容量: 512KB(256K x 16)
程序存儲器類型: 閃存
RAM 容量: 34K x 16
電壓 - 電源 (Vcc/Vdd): 1.805 V ~ 1.995 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 179-LFBGA
包裝: 托盤
產(chǎn)品目錄頁面: 718 (CN2011-ZH PDF)
其它名稱: 296-25243
Borrow
Reset
Timer Reload
SYSCLKOUT
TCR.4
(Timer Start Status)
TINT
16-Bit Timer Divide-Down
TDDRH:TDDR
32-Bit Timer Period
PRDH:PRD
32-Bit Counter
TIMH:TIM
16-Bit Prescale Counter
PSCH:PSC
Borrow
INT1
to
INT12
INT14
28x
CPU
TINT2
TINT0
PIE
CPU-TIMER0
CPU-TIMER2
(ReservedforDSP/BIOS)
INT13
TINT1
CPU-TIMER1
XINT13
SPRS581D – JUNE 2009 – REVISED MAY 2012
4.2
32-Bit CPU-Timers 0/1/2
There are three 32-bit CPU-timers on the devices (CPU-TIMER0/1/2).
Timer 2 is reserved for DSP/BIOS. CPU-Timer 0 and CPU-Timer 1 can be used in user applications.
These timers are different from the timers that are present in the ePWM modules.
NOTE
NOTE: If the application is not using DSP/BIOS, then CPU-Timer 2 can be used in the
application.
Figure 4-2. CPU-Timers
The timer interrupt signals (TINT0, TINT1, TINT2) are connected as shown in Figure 4-3.
A.
The timer registers are connected to the memory bus of the C28x processor.
B.
The timing of the timers is synchronized to SYSCLKOUT of the processor clock.
Figure 4-3. CPU-Timer Interrupt Signals and Output Signal
The general operation of the timer is as follows: The 32-bit counter register "TIMH:TIM" is loaded with the
value in the period register "PRDH:PRD". The counter register decrements at the SYSCLKOUT rate of the
C28x. When the counter reaches 0, a timer interrupt output signal generates an interrupt pulse. The
registers listed in Table 4-1 are used to configure the timers.
58
Peripherals
Copyright 2009–2012, Texas Instruments Incorporated
Product Folder Link(s): SM320F28335-EP
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