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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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ST92185B 数据表(PDF) 64 Page - STMicroelectronics |
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ST92185B 数据表(HTML) 64 Page - STMicroelectronics |
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64 / 178 page  64/178 ST92185B - TIMING AND CLOCK CONTROLLER Figure 34. Programming the MCCR Figure 35. Programming the SKCCR, PXCCR Set the PLL frequency FML (3:0) Start the PLL by setting FMEN = 1 Validate PLL as Main CPU Clock Wait for Clock Stabilization Example: spp #27h ;Set the page ld MCCR, #04h ;Set FML bits to the value needed e.g. 10 MHz or MCCR, #80h ;Starts the PLL or MCCR, #40h ;Validate the PLL as the main CPU Clock Wait for stabilization time Set the PLL frequency SKW (3:0) Start the PLL by setting SKWEN = 1 Validate PLL is fed to TDSRAM and OSD Wait for Clock Stabilization Example: spp #27h ;Set the page ld SKCCR, #04h ;Set SKW bits to the value needed or SKCCR, #80h ;Starts the PLL or PXCCR, #80h ;PLL is fed as DOTCK to the TDSRAM & OSDPLL Wait for stabilization time |
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