13
KDC-W8534/W8534Y
KDC-X790
Pin No.
Pin Name
I/O
Function
Processing Operation
111
SA RST
O
Spectrum analyzer IC reset
H : Reset (1.8V or higher), L : Normal
112
3.3VDD
-
3.3V
113
EVSS
-
Connect to GND
114
PON GREEN
I/O
Green key illumination light ON switch
H : Light ON, Hi-Z : Light OFF
115
PON RED
I/O
Red illumination light ON switch
H : Light ON, Hi-Z : Light OFF
116
PON SW3V
I/O
Rotary encoder power supply
L : ON, Hi-Z : OFF
117
NC
O
Not used
118~123
A21~A16
O
Address output
124
2.5VDD
-
2.5V
125
VSS
-
Connect to GND
126~133
A15~A8
O
Address output
134
3.3VDD
-
3.3V
135
EVSS
-
Connect to GND
136~142
A7~A1
O
Address output
143
NC
-
Not used
144
D15
I/O
Data input/output
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MECHANISM MICROCOMPUTER : 91CU27UG5UR8 (X32-573 : IC1)
Pin No.
Pin Name
I/O
Application
Processing Operation Description
1
VREFL
I
ADC reference power supply input terminal (L)
GND
2
DMUTE
O
Driver MUTE
L : STOP, H : MUTE OFF
3
CSRST
O
(Decoder) Resetting control
L : RESET, H : NORMAL
4
NC
O
Not used.
Open output L-fixed
5
LZM
I
0bit MUTE detection (Lch)
L : MUTE OFF, H : MUTE ON
6
RZM
I
0bit MUTE detection (Rch)
L : MUTE OFF, H : MUTE ON
7
BREQ
I
(Decoder) BREQ signal input
8
DSPINT
I
(DSP) interruption signal input
H : Interruption
9
SREQ
O
(Decoder) SREQ signal output
10
NC
O
Not used.
Open output L-fixed
11
S_DATA
O
(Decoder) Data output for serial data
12
B_DATA
I
(Decoder) Data input for serial data
13
CLK
O
(Decoder) Clock output for serial data
14
DSPTXD1
O
(DSP) Data output for serial data
15
DSPRXD1
I
(DSP) Data input for serial data
16
DSPSCLK1
O
(DSP) Clock output for serial data
17
AM0
-
ROM mode selection terminal
H : NORMAL, L : External ROM mode
18
DVCC
-
BU3.3V
19
X2
O
Oscillator connection 26.88MHz
20
DVSS
-
GND
21
X1
I
Oscillator connection 26.88MHz
22
AM1
-
H-fixed
23
RESET
I
Reset detection
L : RESET H : NORMAL
MICROCOMPUTER’S TERMINAL DESCRIPTION
