56
MEX-R5
Pin No.
Pin Name
I/O
Description
45
KEY_ACK
I
Acknowledge signal (wake up signal) input terminal for the key entry Acknowledge signal is
input to accept any function key in the standby status On at input of "H"
46
BU_IN
I
Back up power supply detection signal input terminal "L" is input at low voltage
47 to 49
MD0 to MD2
I
Setting terminal for the CPU operational mode
50
TUN_ATTIN
I
Attenuate request signal input from the tuner unit (AEP, UK, Russian models only)
51
DAVN
I
Synchronize detection signal input of RDS data block (AEP, UK, Russian models only)
52
AD_ON
O
A/D converter power control signal output
When the KEY_ACK (pin 45) that controls reference voltage power for key A/D conversion input
is active, "L" is output from this terminal to enable the input
53
Z_MUTE
I
Muting on/off control signal input from the D/A converter
54
SELFSW
I
Loading detection switch input from the DVD mechanism deck block
55
ACCIN
I
Accessory power detection signal input terminal "L": accessory power on
56
UNISI
I
Serial data input from the SONY bus interface IC
57
UNISO
O
Serial data output to the SONY bus interface IC
58
UNICLK
O
Serial data transfer clock signal output to the SONY bus interface IC
59
BUSON
O
SONY bus on/off control signal output terminal "L": bus on
60
SYSRST
O
Reset signal output to the SONY bus interface IC
61
NC
O
Not used
62
SIRCS
I
SIRCS signal input terminal
63
INSW
I
Disc insert detection switch input from the DVD mechanism deck block
64
NC
O
Not used
65
DSW
I
Chucking end detection switch input from the DVD mechanism deck block
66
NC
O
Not used
67
VMUTEIN
I
Video muting request signal input terminal Not used
68
CD_RTS
I
Data send request signal input for UART communication
69
CD_CTS
O
Data send request signal output for UART communication
70
CD_RST
O
Reset signal output to the DVD processor and flash memory
71
RF_ON
O
Power on/off control signal output for the RF unit
72
LOAD
O
Loading motor control signal output terminal (loading direction)
73
EJECT
O
Loading motor control signal output terminal (eject direction)
System reset signal input from the reset signal generator and reset switch "L": reset
System clock input/output terminal (32.768 kHz)
System clock input/output terminal (3.8684 MHz)
Rotary remote commander shift key input terminal
84
TELLATT
I
Telephone muting detection signal input terminal
At input of "H", the audio signal is attenuated by 20 dB
85
ILLIN
I
Illuminate line detect signal input terminal for the automatic dimmer control
"L": detected the illumination line (lighting is made dark)
86, 87
NC
O
Not used
88
CPRM_W
I
CPRM KEY writing mode detection input when internal flash memory writing Not used
89
FLASH_W
I
Writing mode detection input when internal flash memory writing
90, 91
CNT A, CNT B
O
RF unit control signal output terminal
92, 93
NC
O
Not used
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