Sony HCD-BX5BT - IC PIN FUNCTION DESCRIPTIONS - MAIN BOARD (CONT.); SYSTEM CONTROLLER IC301 PIN FUNCTIONS (CONT.)

53
HCD-BX5BT/CBX1/CBX3
Pin No.
Pin Name I/O Description
45
DEC BUS SEL2 O Data selection signal output terminal Not used
46
PULL UP O Connected to the power supply
47 to 53
NC O Not used
54
BT_AV_ ROLE O Transmission/reception mode notification signal output to the bluetooth module (BX5BT)
55
BT_RESET O Reset signal output to the bluetooth module "L": reset (BX5BT)
56
BT AUDIO
OUT MUTE
OBlutetooth muting on/off control signal output terminal "H": muting on (BX5BT)
57
BT CTS I Clear to send signal input from the bluetooth module (BX5BT)
58
BT POWER O Power on/off control signal output terminal for bluetooth section "H": power on (BX5BT)
59 to 61
NC O Not used
62
VCC - Power supply terminal (+3.3V)
63
CD CCE O Chip enable signal output to the CD-MP3 processor
64
VSS - Ground terminal
65 to 68
CD BUS3 to
CD BUS0
O Serial data output to the CD-MP3 processor
69
MP3 IREQ I Request signal input from the CD-MP3 processor
70
CD ON O Power on/off control signal output terminal for CD section "H": power on
71
CD XRST O Reset signal output to the CD-MP3 processor "L": reset
72
CD DRIVE MUTE
OMuting signal output to the coil/motor driver
73
KEY WAKE
UP_DISPLAY
IWake up signal input terminal
74
KEY WAKE
UP_POWER
IWake up signal input terminal
75
CD CLK O Serial data transfer clock signal output to the CD-MP3 processor
76
USB POWER O Power on/off control signal output terminal for USB section "H": power on (CBX3)
77
SEL INH O Input selection control signal output terminal Not used
78
SEL A O Input selection control signal output terminal Not used
79
SEL B O Input selection control signal output terminal Not used
80
TA LINE-MUTE
OLine muting on/off control signal output terminal "H": muting on
81
AMP DATA O Serial data output to the electrical volume
82
AMP CLOCK O Serial data transfer clock signal output to the electrical volume
83, 84
NC O Not used
85
MODEL IN I Setting terminal for the model
86
I-POWER
MONITOR
I Power monitor input terminal
87
STK-ON O Standby control signal output to the power amplifier
88
CDM LOAD OUT
OLoading motor control signal output terminal (for loading out)
89
CDM LOAD IN O Loading motor control signal output terminal (for loading in)
90
CDM SW(OPEN) I Disc tray open position detection signal input terminal
91
CDM SW (CLOSE)
IDisc tray close position detection signal input terminal
92 to 94
KEY2 to KEY0 I Top and front panel key input terminal (A/D input)
95
RDS DATA I RDS data input from the tuner (FM/AM) (CBX3)
96
AVSS - Ground terminal
67
SPEC IN I Setting terminal for the destination
98
VREF I Reference voltage (+3.3V) input terminal
99
AVCC - Power supply terminal (+3.3V)
100
ST CE O Chip enable signal output to the tuner (FM/AM)