Cpu (Logic Unit: Ic1) Port Allocation - Icom IC-80AD Service Manual

4-4 CPU (LOGIC UNIT: IC1) PORT ALLOCATION

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