參數(shù)資料
型號: TMS320F28069UPNT
廠商: Texas Instruments
文件頁數(shù): 123/174頁
文件大?。?/td> 0K
描述: IC MCU 32BIT 256KB FLASH 80LQFP
產(chǎn)品培訓模塊: ControlSUITE
Piccolo F2806x
TPS75005 Single IC Power for C2000 MCU
標準包裝: 119
系列: TMS320F2806x, Piccolo™, C2000™
核心處理器: C28x
芯體尺寸: 32-位
速度: 80MHz
連通性: CAN,I²C,McBSP,SCI,SPI,UART/USART
外圍設備: 欠壓檢測/復位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 40
程序存儲器容量: 256KB(128K x 16)
程序存儲器類型: 閃存
RAM 容量: 50K x 16
電壓 - 電源 (Vcc/Vdd): 1.71 V ~ 1.995 V
數(shù)據(jù)轉換器: A/D 12x12b
振蕩器型: 內部
工作溫度: -40°C ~ 105°C
封裝/外殼: 80-LQFP
包裝: 托盤
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
2.9.4
USB and HRCAP PLL Module (PLL2)
In addition to the main system PLL, these devices also contain a second PLL (PLL2) which can be used to
clock the USB and HRCAP peripherals. The PLL supports multipliers of 1 to 15 and has a fixed divide-by-
two on its output.
PLL2 may be clocked from the following three sources by modifying the PLL2CLKSRCSEL bits
appropriately in the PLL2CTL register:
INTOSC1 (Internal Zero-pin Oscillator 1): This is the on-chip internal oscillator 1 and provides a 10-
MHz clock. If used as a clock source for HRCAP, the oscillator compensation routine should be called
frequently. Because of accuracy requirements, INTOSC1 cannot be used as a clock source for the
USB.
Crystal/Resonator Operation: The (crystal) oscillator enables the use of an external crystal or resonator
attached to the device to provide the time base. The crystal or resonator is connected to the X1/X2
pins.
External Clock Source Operation: This mode allows the reference clock to be derived from an external
single-ended clock source connected to either GPIO19 or GPIO38. The XCLKINSEL bit in the XCLK
register should be set appropriately to enable the selected GPIO to drive XCLKIN.
NOTE
For proper operation of the USB module, PLL2 should be configured to generate a 120-MHz
clock. This will be divided by two to yield the desired 60 MHz for the USB peripheral.
HRCAP supports a maximum clock input frequency of 120 MHz.
52
Device Overview
Copyright 2010–2012, Texas Instruments Incorporated
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