Port Allocations - Icom IC-F6220D Service Manual

5-5 PORT ALLOCATIONS

• CPU (FRONT UNIT: IC51)
BALL LINE
No. NAME
A1 KR1 [P1] input.
Power supply switching control.
A5 RXC
H= During receive or stand-by.
A7 TDAT Serial data to the DSP (IC2007).
Power supply switching control.
A15 PWON
H= The transceiver's power is ON.
B1 KR3 [P3] input.
B2 KR0 [P0] input.
Noise level detect.
B12 NOIS
H= Squelch close
External PTT input.
B13 EPTT
H= An external PTT is pushed.
B14 PGIO4 External I/O port.
AF mute SW control.
B15 AFON
H= During the squelch circuit is opened.
C3 KR2 [P2] input.
Power supply switching control.
C5 TXC
H= While transmitting.
C8 ESDA EEPROM (IC52) serial data.
C12 POSW [ ] input.
1st IF filters (FI4 and FI5) switching
C14 ADS control.
L= During digital mode.
Receive mode (narrow/mid/wide)
C15 NWC switching.
L= During narrow mode.
D6 DSCK DSP (IC2007) clock.
D8 ESCL EEPROM (IC52) clock.
DSP (IC2007) power control.
D13 DPDN
H= DSP is inactivated
DSP (IC2007) reset.
D14 DRES
L= Reset
Clock frequency shift.
D15 CSFT
H= Clock frequency is shifted.
E13 CRES CPU reset.
[ ] key input.
H1 SIDE1
L= Pushed
[ ] key input.
H2 SIDE2
L= Pushed
Microphone [PTT] input.
J1 IPTT
L= Pushed.
LCD dimmer control.
K3 LIGT1
H= Dimmer OFF.
MCG0,
L1, L2 MIC gain control.
MCG1
Backlight control.
L3 LIGT2
H= Backlight ON.
L4 HANG Microphone hang up detection.
L14 SSO Common serial data.
L15 SCK Common clock.
Transmission mute.
M1 TMUT
L= TX inhibit.
M8 BEEP Beep audio. (Square waves)
D/A converter (IC1006) strobe.
M14 DAST
H= Load enable.
LCD driver (IC6) chip enable.
N2 LINH
H= Enable.
PLL (IC8) unlock detect.
N4 UNLK
L= Unlocked.
N12 BATV Power supply voltage sensing.
DESCRIPTION
BALL LINE
I/O
No. NAME
N14 RDAT DSP (IC2007) serial data.
I
N15 IGSW
O
P1 LCK
O
P2 LCS
O
P4 PLSW
I
P10 TEMP Temperature sensing voltage.
I
P11 RSSI RSSI sensing voltage.
I
P12 AFVI [VOLUME CONTROL] input.
R1 LSO
I
R4 PLST PLL strobe.
I/O
R10 LVIN
O
I
O
I/O
I
O
O
O
O
O
O
O
I
I
I
I
O
O
O
I
O
O
O
O
O
O
I
I
5 - 4
DESCRIPTION
Ignition SW detect.
L=Ignition detected.
LCD driver (IC6) clock.
LCD driver (IC6) chip select.
PLL lock up time control.
L= Fast lock up
LCD driver (IC6) serial data.
Lock voltage input.
I/O
O
I
O
O
O
I
I
I
O
O
I