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RM0319 数据表(PDF) 333 Page - STMicroelectronics

部件名 RM0319
功能描述  SPEAr320S architecture and functionality
PDF  368 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

RM0319 数据表(HTML) 333 Page - STMicroelectronics

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RM0319
Power, reset and clock control
Doc ID 022640 Rev 3
333/368
Figure 111. DDR_CLK, HCLK and PCLK clock distribution
hclk_divsel bits
CORE_CLK_CFG register
Divider /1, /2, /3, /4
HCLK
SYS_CLK
pclk_ratio_lwsp bits
CORE_CLK_CFG register
PCLK for low
speed subsystem
pclk_ratio_basc bits
CORE_CLK_CFG register
PCLK for basic
subsystem
pclk_ratio_arm1 bits
CORE_CLK_CFG register
PCLK for ARM
subsystem
DDR_CLK
PLL_CLK_CFG register
mctr_clk_sel bits
HCLK
PLL2_CLKOUT
M4
Divider /1, /2, /3, /4
Divider /1, /2, /3, /4
Divider /1, /2, /3, /4
2x HCLK



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