14
KVT-715DVD,725DVD/-B,735DVD
KVT-745DVD,765DVD,815DVD
Pin No.
Name
I/O
Description / Processing Operation
43
TV_MDATA TV_MDATA
O
DATA for TV unit
TV_MDATA FLASH_SO
O
Use for flash ROM program writing
44
TV_CLK TV_CLK
O
Clock for TV unit
TV_CLK FLASH_CLK
I
Use for flash ROM program writing
45
SYS_ON
I
Control for power on/off from main microprocessor (H : Hide-way unit on, L : Off)
46
SYS_MDATA
I
Data from main microprocessor
47
SYS_SDATA
O
Data for main microprocessor
48
SYS_MCLK
I
Clock from main microprocessor
49
PWIC_STBY
O
Audio power IC stand-by control (H : Power on, L : Power off)
50
NC
O
NC
51
PWIC_SVR
O
SVR discharge control (H : Discharge )
52
PWIC_MUTE
O
Audio power IC muting control (L : Muting on or all off)
53
NC
O
NC
54
ILLUMI_DET
I
Illumination detect terminal (L : Illumination on)
55,56
NC
O
NC
57
BU_DET
I
Backup line voltage detect terminal (H : Reduced voltage less than 8.8V)
58,59
NC
O
NC
60
PORTVDD1
-
VDD (BU5V)
61
PWIC_BEEP
O
Beep audio output terminal
62
P_ON
O
Control for AVR (SW5V H : on)
63
SCL COR_SCL
I/O
Clock for EEPROM (ROM correction)
SCL IC5_SCL
I/O
IIC bus clock (for IC5)
64
SDA COR_SDA
I/O
Data for EEPROM(ROM correction)
SDA IC5_SDA
I/O
IIC bus data (for IC5)
65
ES_DSP_SW
O
Select for audio system E's or DSP (H : DSP, L : E’s)
66
BUS_MUTE
O
Bus muting (H : Muting)
O
MZ-Bus illumination control (H : Illumination on)
O
MZ-Bus system on control (L : Bus on)
O
MZ-Bus system off control (L : Bus off)
-
NC
NC
-
GND
Main clock (18.874MHz)
-
Main clock (18.874MHz)
75~80
NC
O
NC
81
SYS_MUTE
I
Muting control from Main unit microprocessor (L : Request for muting)
82,83
NC
O
NC
84
TUN_SDA
I/O
Front-end I2C data input/output terminal
85
NC
O
NC
86
TUN_SCL
I/O
Front-end I2C clock output terminal (Max 400kHz)
87,88
NC
O
NC
MICROCOMPUTER’S TERMINAL DESCRIPTION
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