參數(shù)資料
型號: TMDXCNCD28069ISO
廠商: Texas Instruments
文件頁數(shù): 140/174頁
文件大?。?/td> 0K
描述: EVAL PICCOLO CONTROLCARD
標(biāo)準(zhǔn)包裝: 1
系列: TMS320F2806x, Piccolo™, C2000™
主要目的: 接口,RS232,GPIO
嵌入式: 是,MCU,32 位
已用 IC / 零件: TMS320F2806x
已供物品:
OSCCLK
SYSCLKOUT
Write to PLLCR
OSCCLK * 2
(Current CPU
Frequency)
OSCCLK/2
(CPU frequency while PLL is stabilizing
with the desired frequency. This period
(PLL lock-up time t ) is 1 ms long.)
p
OSCCLK * 4
(Changed CPU frequency)
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
Figure 5-6 shows an example for the effect of writing into PLLCR register. In the first phase, PLLCR =
0x0004 and SYSCLKOUT = OSCCLK x 2. The PLLCR is then written with 0x0008. Right after the PLLCR
register is written, the PLL lock-up phase begins. During this phase, SYSCLKOUT = OSCCLK/2. After the
PLL lock-up is complete, SYSCLKOUT reflects the new operating frequency, OSCCLK x 4.
Figure 5-6. Example of Effect of Writing Into PLLCR Register
68
Peripheral and Electrical Specifications
Copyright 2010–2012, Texas Instruments Incorporated
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