15
DDX7032/7032M/712
DNX7120/7220/7320
●
AUDIO MICROCOMPUTER: 30624MWPB74GP (X34: IC702)
Pin No.
Pin Name
I/O
Application
True Value
Table
Processing Operation Description
1
PON
O
Control of peripheral power supply
H: ON, L: OFF
2
P_CON
O
PCON control
H: EXCEPT, L: When STANDBY or POWER OFF
3
CODEC_DO
O
CODEC control (Mid)
3
NC
O
Not used (Low)
Output is
fi
xed to L
4
CODEC_DI
I
CODEC control (Mid)
4
NC
O
Not used (Low)
Output is
fi
xed to L
5
CODEC_CLK
O
CODEC control (Mid)
5
NC
O
Not used (Low)
Output is
fi
xed to L
6
BYTE
I
External data bus switching
Fixed to “L” since this is a single chip
7
CNVSS
I
Emulator connection
H: Program write mode, L: Normal operation
8,9
NC
O
Not used
Output is
fi
xed to L
10
RESET
I
μ
COM hard reset
H: Normal operation, L: Reset
11
XOUT
O
Oscillator 11MHz (Internally the unit operates at the
frequency of 2 times of the oscillator frequency)
12
VSS
-
13
XIN
I
Oscillator 11MHz (Internally the unit operates at the
frequency of 2 times of the oscillator frequency)
14
VCC1
-
15
NMI
I
Fixed to “H” for writing-in.
16
R_CLK
I
RDS CLK input (K, E, M, R)
16
NC
O
Not used (X, V)
Output is
fi
xed to L
17
CODEC_ERROR
I
CODEC ERROR input (Mid)
17
NC
O
Not used (Low)
Output is
fi
xed to L
18
NC
O
Not used
Output is
fi
xed to L
19
CODEC_CS
O
CODEC chip select (Mid)
19
NC
O
Not used (Low)
Output is
fi
xed to L
20
BEEP
O
Beep Pulse
output
21,22
NC
O
Not used
Output is
fi
xed to L
23
BM_SW
O
Bass Management (Mid)
23
NC
O
Not used (Low)
Output is
fi
xed to L
24
AD_MUTE
O
CODEC input section MUTE (Mid)
H: MUTE OFF, L: MUTE ON
24
NC
O
Not used (Low)
Output is
fi
xed to L
25
DSP_RST
O
DSP: Reset (Mid)
25
NC
O
Not used (Low)
Output is
fi
xed to L
26
DSP_SS
O
DSP chip select (Mid)
26
NC
O
Not used (Low)
Output is
fi
xed to L
27
TUN_SCL
O
RADIO TUNER control
28
TUN_SDA
I/O RADIO TUNER control
29
EM_TX
O
Communication with emulator
29
SAT_TX
O
Communication with SAT
30
EM_RX
I
Communication with emulator
MICROCOMPUTER’S TERMINAL DESCRIPTION
