41
CFD-G550CP
57 NC I Not used
58 REG CHK I Regulator check detect signal input
59, 60 NC I Not used
61 AVSS — Ground
62, 63 NC O Ground
64 AVREF1 — Power supply pin (+3.3V)
65 NC I Not used
66, 67 NC O Not used
68 CMDOUT (MP3) I COMMAND serial data input
69 CMDIN (MP3) O COMMAND serial data output
70 CL (MP3) O COMMAND serial clock output
71 NC O Not used
72 DRF (CD) I CD focus ON detect signal input
73 DO (CD) I CD data input
74 DI (CD) O CD data output
75 CL (CD) O CD clock output
76 CE (CD) O CD chip enable output
77 FSEQ (CD) I CD synchro. signal detect input
78 RES (CD) O CD DSP IC reset output
79 RESB (MP3) O MP3 IC system reset output
80 CE (MP3) O COMMAND serial enable output
81, 82 NC I Not used
83 to 90 NC O Not used
91 A-MUTE O Audio mute control signal output
92 WOOFER ON/OFF O Woofer AGC control signal output
93 P-CON O Power control signal output
94 V-DATA O Electronic volume serial data output
95 V-CLOCK O Electronic volume serial clock output
96 WOOFER 1/2 O Woofer gain control signal output
97 TAPE PLAY I TAPE play detect signal input
98 REC IN I REC signal input
99 NC O Not used
100 VSS — Ground
Pin No. Pin Name I/O Pin Description
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