Icom IC-80AD - PRIORITY WATCH

4 - 6
PIN
No.
LINE
NAME
DESCRIPTION
IN/
OUT
STATUS CONDITION
3 PCON
Transceiver power control.
OUT H
While the transceiver power is
ON.
4 AFMUTE AF mute signal to the AF mute SW (LOGIC UNIT: Q403, 404). OUT H AF mute.
5 MUTE TX mute signal. OUT H TX mute.
6 MICC
MIC AMP (LOGIC UNIT: Q304) control signal to the MIC AMP controller
(LOGI UNIT: Q302).
OUT L MIC AMP is activated.
7 AFON
Control signal to the AF power AMP controller (LOGIC UNIT: Q400–402).
OUT H
AF power AMP (L: IC400) is
activated (Squelch open).
9BATT
Power supply select signal to the power supply selector (LOGIC UNIT:
IC1000).
OUT H/L
H= Operated by the battery
pack.
L= Operated by an external
power source.
10,
11
MIC1, MIC2
MIC gain control signals to the MIC gain controller (LOGIC UNIT: Q303).
OUT – –
12 ACQ ACQ signal to the modem (LOGIC UNIT: IC501). OUT H Synchronized.
14 RXDT RX data to the modem (LOGIC UNIT: IC501). IN – –
15 TXDT TX data to the modem (LOGIC UNIT: IC501). OUT – –
16 AMBEC DSP IC power line regulator (LOGIC: IC508) control signal. OUT H In DV mode operation.
18 DVC
Liner CODEC IC power line regulator (LOGIC UNIT: Q503, 504) control
signal.
OUT H In DV mode operation.
20 PTT [PTT] key input. (Pull-down) IN H The key is pushed.
21 DASTB2 Strobe signal to the DAC (MAIN UNIT: IC600). OUT – –
26 BTDET Battery attach detect. IN L A battery is attached.
27 RXCK RX clock to the modem (LOGIC UNIT: IC501). IN – –
28 TXCK TX clock to the modem (LOGIC UNIT: IC501). IN – –
34 LINH LCD driver (LOGIC UNIT: IC603) chip-enable signal. OUT L LCD display OFF.
35 LCE Strobe signal to the LCD driver (LOGIC UNIT: IC603). OUT – –
36 LDI Serial data to the LCD driver (LOGIC UNIT: IC603). OUT – –
37 LCL Clock to the LCD driver (LOGIC UNIT: IC603). OUT – –
38 BLED
[BUSY] LED driver (LOGIC UNIT: Q201) control signal.
OUT H
While receiving (Squelch
open).
39 TXLED TX LED control signal. OUT H Lights ON. (While transmitting)
40 LLIGHT LCD backlight control signal. OUT L Backlight ON.
41 KLIGHT LCD/Key backlight driver (LOGIC UNIT: Q201) control signal. OUT L Lights ON.
42 AMBECLK AMBE clock signal to the DSP CODEC IC (LOGIC UNIT: IC506). OUT – –
43 AMBERXD AMBE RX data to the DSP CODEC IC (LOGIC UNIT: IC506). IN – –
44 AMBETXD AMBE TX data to the DSP CODEC IC (LOGIC UNIT: IC506). OUT – –
45 AMBESTB AMBE strobe signal to the DSP CODEC IC (LOGIC UNIT: IC506). OUT – –
46 NOIS Noise detect signal from the IF IC (MAIN UNIT: IC100). IN – –
47 AMBERES
Reset signal to the liner CODEC IC and DSP CODEC IC (LOGIC UNIT:
IC503 and IC506).
OUT – –
49 AMBEEPR AMBEEPR signal to the DSP CODEC IC (LOGIC UNIT: IC506). IN – –
50 DTCS Tone fi lter response switching signal. OUT H DTCS signals is in use.
51–
55
KR0–KR4
Key detect signal.
(Pushed button is detected according to the input voltage.)
IN – –
56 SQL [SQL] key input. (Pull-up) IN L The key is pushed.
57 DIUD [DIAL] input (Phase B). IN – –
59 DICK [DIAL] input (Phase A). IN – –
61–
64
KS0–KS3
Key matrix ports.
OUT – –
69 IOSTB Strobe signal to the expander (RF UNIT: IC951). OUT – –
70 IOSTB1 Strobe signal to the expanders (MAIN UNIT: IC701, 702). OUT – –
71 IOEN Output enable signal to the expanders (MAIN UNIT: IC701, 702). OUT – –
72 DASTB1 Strobe signal to the DAC (RF UNIT: IC950). OUT – –
73 PLLSTB Strobe signal to the PLL IC (MAIN UNIT: IC800). OUT – –
7 4 DATA
Common serial data to the PLL ICs and DAC (LMX2313/ME15E03SL/
M62352AGP).
OUT – –
75 CK
Common clock signal to the the PLL ICs and DAC (LMX2313/
ME15E03SL/M62352AGP).
OUT – –
4-4 CPU (LOGIC UNIT: IC1) PORT ALLOCATION
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