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ST92185B bảng dữ liệu(PDF) 64 Page - STMicroelectronics

tên linh kiện ST92185B
Giải thích chi tiết về linh kiện  16K/24K/32K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY
PDF  178 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST92185B bảng dữ liệu(HTML) 64 Page - STMicroelectronics

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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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