Sony CDP-EX770 - Page 37

41 X2 O
System main clock. (10 MHz)
42 X1 I
43 GND – Ground
44 XT2 O
System sub clock. (32.768 kHz)
45 XT1 I
46 GND – Ground
47 KEY IN K1 I
48 KEY IN K2 I Key input. (analog)
49 KEY IN I
50 GND –
51 GND –
52 GND – Ground
53 GND –
54 GND –
55 AVDD – Analog power supply +5V.
56 AVREF I Analog system reference voltage input.
57 GND – Ground
58 SDATA O Flourescent indicator tube data output. (IC601)
59 SCK O Flourescent indicator tube clock output. (IC601)
60 CS O Flourescent indicator tube chip select signal output. (IC601)
61 RESET O Flourescent indicator tube reset signal output. (IC601)
62 ERRORS I
63 CORRECTION O Not used. (open)
64 RECEIVED O
Pin No. Pin Name I/O Function
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