PLL202-151 PhaseLink (PLL), PLL202-151 Datasheet - Page 20

• Manufacturer Part Number: PLL202-151
• Description: Ali, Via, Sis, Intel 440BX Chipset FTGS , I2C Programmable: Skew / SST / Frequency / Drive
• Manufacturer: PhaseLink (PLL)

47745 Fremont Blvd., Fremont, California 94538 TEL [phone] FAX [phone]
WDT OPERATIONAL FLOW CHART
END
END
Programmable Clock Generator for VIA, ALI and SIS DDR SYSTEM
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§
§
§
§
Frequency Setting
to I2C Frequency
Setting
Enable Bit
Enable Bit
Setting
Copy Fall-Back
Disable WD -
F
Frequency
Setting
Disable WD -
F
CPU
CPU
= Fall-Back
= Target
SUCCESS
SUCCESS
WD-TIMER, WD-ENABLE
I2C Register Loading:
System Restart @
Jumper-Setting
Fall-Back, M,
Frequency
Frequency
Restart @
Fall-back
Response
START
Wait For
PRELIMINARY
System
System
END
FAIL -
After specified WD -Timer Expired
FAIL -
After specified WD -Timer Expired
PLL202-151
Rev 11/05/01 Page 20