ST92195C STMicroelectronics, ST92195C Datasheet - Page 66

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

ST92195C/D - TIMING AND CLOCK CONTROLLER
Figure 33. Programming the MCCR
Figure 34. Programming the SKCCR, PXCCR
66/249
Start the PLL by setting
Set the PLL frequency
Start the PLL by setting
Set the PLL frequency
Validate PLL is fed to
Validate PLL as Main
TDSRAM and OSD
Wait for Clock
Wait for Clock
Stabilization
SKWEN = 1
Stabilization
SKW (3:0)
CPU Clock
FMEN = 1
FML (3:0)
Example:
spp
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
Example:
spp
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
Wait for stabilization time
#27h ;Set the page
#27h ;Set the page