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4 - 4
4-5 PORT ALLOCATIONS
• CPU (IC360)
• D/A CONVERTER (IC190)
PIN
No.
LINE
NAME
DESCRIPTION
I/O
1
BEEP
Beep audio (Squarewave).
O
2
PS
PLL power save mode control.
O
3
TDEC
Decoded tone signal. (for monitoring
purpose)
O
4
DASTB
Strobe for the D/A converter.
O
5
PLSTB
Strobe for the PLL IC.
O
10
SDATA
Serial data for the PLL IC and D/A
converter.
O
11
SCK
Serial clock to the PLL IC and D/A
converter.
O
12
ESCK
Serial clock for the EEPROM.
O
13
ESDA
Serial clock from/to the EEPROM.
I/O
25
RES
CPU reset.
I
27
TEMPV
Temparature sensing voltage.
I
28
BTEMPV Battery temparature sensing voltage.
I
29
LOINV
Lock voltage from the PLL IC.
I
30
TDETV
TX power sensing voltage.
I
31
BATTV
Battery voltage. (Divided voltage)
I
32
RSSIV
RSSI voltage from the IF demodulate IC.
I
33
NOISV
Noise level sensing voltage from the
IF demodulate IC.
I
34
DCV
Input voltage detection.
I
36
WDECV* Weather alart tone signal.
I
38
ATIS**
ATIS signal.
O
51–
72
SEG0-
SEG21
LCD driver segment terminals.
O
77
LEDS
Backlight control.
O
78
CRESET Charging control IC reset.
O
79
LCDS
LCD contrast control.
O
80
MICMS
MIC mute SW control.
L=MIC mute.
O
81
ATX
MIC control.
H=While transmitting.
O
85
AFVS
AF power AMP control.
H=While the squelch is opened.
O
86
V3VS
VCO power supply control.
O
87
M3VS
Main power supply control.
O
88
LOW
TX power control.
H=The TX power is set to Low.
O
89
R3VS
R3V line control.
L= W h i l e r e c e i v i n g . ( R X c i r c u i t s
activated)
O
90
T3VS
T3V line control.
L= While transmitting. (TX circuits
activated)
O
97
PON
Main power supply line control.
O
98
DETMS
RX AF line mute.
L=Mute.
O
99
LEDI-R
Charge status.
L=While charging.
Pulse=Charging error.
I
100
LEDI-G
Charge status.
L=When the battery is fully charged.
I
*: M24 only **: [FRG] and [HOL] only
PIN
No.
LINE
NAME
DESCRIPTION
I/O
101
PTTM
MIC mute control.
L=MIC mute.
O
103
PTTIN
[PTT] input.
H=Pushed.
I
106
LOW
TX power control.
H=TX power is set to low.
O
107
TXMS
Transmitting control.
H=TX mute.
O
108
16/9
[16/9] input.
L=Pushed.
I
109
CH/WX
[CH/WX] input.
L=Pushed.
I
110
UP
[
Y
] input.
L=Pushed.
I
111
DOWN
[
Z
] input.
L=Pushed.
I
112
FAV
[FAV] input.
L=Pushed.
I
113 VOL/SQL
[VOL/SQL] input.
L=Pushed.
I
114
SCAN
[SCAN] input.
L=Pushed.
I
116
H/L
[H/L] input.
L=Pushed.
I
117
UNLK
P L L u n l o c k s i g n a l i n p u t . ( P L L
malfunction detection)
H=PLL unlocked.
I
119
PWSW
[
] input.
H=Pushed.
I
PIN
No.
LINE
NAME
DESCRIPTION
1, 2
FCON
Reference frequency adjustment voltage.
3, 4
PCON
TX output power adjustment voltage.
9, 10
MODC Deviation adjustment.
11, 12 MSENS MIC signal level (MIC sensitivity) adjustment.
13, 14
VOLO
AF output power adjustment.
15, 16
SQLO
Squelch threshould level adjustment.
21, 22 T1CON BPF tuning voltage.