Sony SCD-XB940, Service Manual

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17
Pin No. Pin Name I/O Description
106 VDD —
Power supply terminal (+3.3V) (digital system)
107 VSS —
Ground terminal (digital system)
108 X2/CLKIN I
Clock input terminal (27MHz)
109 X1 O
Clock output terminal (27MHz)
110 VDD —
Power supply terminal (+3.3V) (digital system)
111 VSS —
Ground terminal (digital system)
112 VCCA6 —
Power supply terminal (+3.3V) (analog system)
113 LF I/O
LF signal input/output terminal
114 GNDA6 —
Ground terminal (analog system)
115 VDD —
Power supply terminal (+3.3V) (digital system)
116 VSS —
Ground terminal (digital system)
117 HD7/HIO I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
118 to 120 I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
121 VDD —
Power supply terminal (+3.3V) (digital system)
122 to 125 I/O
Two-way data bus with the system controller (IC605), S-RAM (IC609), expander (IC612) , RF
signal decoder (IC622), and ROM (IC632)
126 VSS — Ground terminal (digital system)
127 SRPRN I
Parallel/serial mode select signal input terminal “L”: parallel mode (fixed at “L” in this set)
128 HINT/HTXD O
Interrupt signal output to the expander (IC612)
HD6/HO6,
HD4/HO4
HD3/HO3,
HD0/HO0