Philips CEM2100/00 Service Manual page 408

Note 2:
This IC does not have a power-on reset circuit.
Keep the /RST pin low until crystal oscillation becomes sufficiently stable with the voltage on each power supply pin
risen to a level within the rated range. Once crystal oscillation is stable, keep /RST low for another 10 or more crystal
oscillation cycles before driving /RST high. To prevent the undefined pin states from affecting the servo circuitry or
any other mechanical blocks in the system, appropriate measures should be taken, such as using a driver IC
supporting a standby feature to place the system in standby mode before /RST is driven high.
Note 3:
Attach bypass capacitors of 0.1uF and 10uF between VDD pins and VSS pins to reduce noise from power supply lines.
Place the bypass capacitors as close to the device pins as possible.
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TC94B14MFG
2010-01-12