Kenwood RD-DV5-S, Service Manual, Page: 17 / 61

RD-DV5-S/DV7-L/DV5MD-S
17
CIRCUIT DESCRIPTION
Port No. Port Name I/O Function
Active
H L
68 SI0 I
SIO0 data input to communicate between main
microcomputer and DVD system microcomputer.
69 SO0 O
SIO0 data output to communicate between main
microcomputer and DVD system microcomputer.
70 SCLK1 O SIO1 clock output for control ICs.
71 SI1 I SIO1 data input for control ICs.
72 SO1 O SIO1 data output for control ICs.
73 PULL UP0 I Unused.
74 PULL UP1 I Unused.
75 NMI I Unused.
76 ADSCINT I Interruption port from Digital Servo Controller (X33, IC1).
77 ODCINT I Interruption port from Optical Disc Controller (X33, IC101).
78 AVINT I Interruption port from AV decoder (X33, IC301).
79 ICRST O Reset signal output to periphery ICs.
80 MP3INT I Interruption port from MP3 decoder (X33, IC900).
81 ADSEP I Unused.
82 RST I Reset signal input.
83 VDD - Supply voltage (+3.3V).
84~91 CPUDT0~7 I/O Bus data (0~7) input and output.
92 VSS - Connected to GND.
93~100 CPUDT8~15 I/O Bus data (8~15) input and output.