NX-200
58
TERMINAL FUNCTION
Control unit (X53-4260-XX)
Pin No.
Name
I/O
Function
CN1
1
/CS
O
Chip select output
2
/RES
O
LCD reset output
3
A0
O
Address bus 0 output
4
/WR
O
WR bus output
5
D0
I/O
Data bus 0
6
D1
I/O
Data bus 1
7
D2
I/O
Data bus 2
8
D3
I/O
Data bus 3
9
D4
I/O
Data bus 4
10
D5
I/O
Data bus 5
11
D6
I/O
Data bus 6
12
D7
I/O
Data bus 7
13
VDD
O
3.3V LCD power supply output
14
VSS
-
GND
15
VDD
O
3.3V LCD power supply output
16
V1
-
LCD drive power supply
17
V2
-
LCD drive power supply
18
V3
-
LCD drive power supply
19
V4
-
LCD drive power supply
20
V5
O
LCD drive power supply
CN23
1
ME
-
Internal MIC GND
2
EMC
I
Internal MIC input
3
SP+
O
BTL for internal speaker
4
SP+
O
BTL for internal speaker
5
SP-
O
BTL output – for internal speaker
6
SP-
O
BTL output – for internal speaker
7
6_/KEYI1
I
Key matrix input (KEYI1 for 6-key)
8
6_/KEYO2
O
Key matrix output (KEYO2 for 6-key)
9
BL_SB
O
LCD backlight voltage output
10
6_/KEYO0
O
Key matrix output (KEYO0 for 6-key)
11
6_/KEYO1
O
Key matrix output (KEYO1 for 6-key)
12
BL_SB
O
LCD backlight voltage output
13
6_/KEYI0
I
Key matrix input (KEYI0 for 6-key)
14
AGND
-
GND
CN403
1
33A
O
3.3V for volume level
2
VOL_GND
-
GND for volume level
3
VOL
I
Volume level input for audio control
4
EN3
I
Rotary switch input
5
AGND
-
GND
6
EN4
I
Rotary switch input
7
EN1
I
Rotary switch input
8
EN2
I
Rotary switch input
Pin No.
Name
I/O
Function
9
+B
O
Power output after passing through the
fuse
10
SB1
I
Power input after power switch
CN404
1
LED_G
O
Green LED control output
2
/EMG
I
Emergency (Orange) key input
3
LED_R
O
Red LED control output
4
IFC
I
TX-RX PCB version recognition input
5
/SAVE
O
50C Reg. control output
6
I2CCK
O
TCXO thermometer clock output
7
/5TC
O
50T Reg. switch control output
8
I2CSDA
I/O
TCXO thermometer data input/output
9
SBC
O
SB3 switch control output
10
/T_R
O
TX/RX control output
11
TV2
O
RX tuning voltage 2 output
12
ASSIST
O
VCO tuning voltage output
13
TV1
O
RX tuning voltage 1 output
14
VAGC
I
AGC voltage input
15
5RC
O
50R switch control output
16
TCXO_MOD
O
TCXO modulation output
17
PGND
-
GND
18
RSSI
I
RSSI voltage input
19
PGND
-
GND
20
CV
I
CV voltage input
21
AGND
-
GND
22
NC
-
No connection
23
NC
-
No connection
24
+B
I
Power input after passing through the fuse
25
+B
I
Power input after passing through the fuse
26
+B
I
Power input after passing through the fuse
27
+B
I
Power input after passing through the fuse
28
NC
-
No connection
29
NC
-
No connection
30
AGND
-
GND
31
/PTT
I
PTT input
32
Side_G
O
Key matrix output (SIDE1,2 key)
33
Side_1
I
Key matrix input (SIDE1 key)
34
W_/N
O
W/N control output
35
SDO1
O
PLL serial data output
36
Side_2
I
Key matrix input (SIDE2 key)
37
/PCS_RF
O
PLL enable output
38
/DSW
O
APC voltage discharge switch control
output
39
APC
O
APC control voltage output
40
/APCSW
O
APC switch control output
41
VCO_MOD
O
VCO modulation output
