Harman Kardon DVD 27 Service Manual page 50

Dvd/cd/cd-r/cd-rw/vcd mp3 player

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DVD27

harman/kardon

ST72F324L, ST72324BL

are not implemented). See See "I/O PORTS" on page 39. and

Section 12.8 I/O PORT PIN CHARACTER-

ISTICS

for more details.

3. OSC1 and OSC2 pins connect a crystal/ceramic resonator, or an external source to the on-chip oscil-

lator; see

Section 1 INTRODUCTION

and

Section 12.5 CLOCK AND TIMING CHARACTERISTICS

for

more details.

4. On the chip, each I/O port has 8 pads. Pads that are not bonded to external pins are in input pull-up con-

figuration after reset. The configuration of these pads must be kept at reset state to avoid added current

consumption.

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