12
KDC-MP928/PSW9531
/PSW9531Y, XXV-01D
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Application
Processing / Operation / Description
102
NC
O
Not used
Output is L at all time
103
CE_SRAM
O
SRAM operation permission
L : SRAM access, Hi-Z : Wait
104
PON_TRI_RED
I/O
Triangle red lighting switch
H : Light ON, Hi-Z : Light OFF
105
ROMCOR_SCL
I/O
For ROM correction
Input except when reading (including STB)
106
ROMCOR_SDA
I/O
For ROM correction
Input except when reading (including STB)
107
PON_BLUE_L
I/O
Blue sub-illumination lighting switch, left
H : Light ON, Hi-Z : Light OFF
108
PON_BLUE_R
I/O
Blue sub-illumination lighting switch, right
H : Light ON, Hi-Z : Light OFF
109
PON_GREEN
I/O
Green key illumination lighting switch
H : Light ON, Hi-Z : Light OFF
110
PON_RED
I/O
Red key illumination lighting switch
H : Light ON, Hi-Z : Light OFF
111
SA_RST
O
Resetting spectrum analyzer IC
H : Reset, L : Normal
112
3.3VDD
-
3.3V
113
EVSS
-
114~123
A25~A16
O
Address output
124
2.5VDD
-
2.5V
125
VSS
-
126~133
A15~A8
O
Address output
134
3.3VDD
-
3.3V
135
EVSS
-
136~142
A7~A1
O
Address output
143
NC
O
Not used
Output L-fixed
144
D15
I/O
Data input/output
●
Mechanism Microcomputer : 91CU27UG5UR8 (X32 : 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
Open, Output L-fixed
L : MUTE OFF, H : MUTE ON
L : MUTE OFF, H : MUTE ON
(DSP) interruption signal input
H : Interruption
Open, Output L-fixed
(Decoder) Data output for serial data
(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
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