Port Allocations - Icom IC-7100 Service Manual Addendum

3-4 PORT ALLOCATIONS

• MAIN CPU (MAIN UNIT: IC6202)
BALL LINE
No. NAME
A4 FORL Forward wave in the TX signal sensing volt-
age.
A5 MUDL Microphone [UP]/[DN] key input.
1.6 V or higher="OFF"
1.2 to 1.6 V=[DN]
1.2 V or lower=[UP]
A6 FMTL Repeater tone, CTCSS and DTCS signals.
A8 FRWT DSP fi rmware writing control.
High=Write mode.
A11 PWRS Main power line control.
High=While the transceiver's power IS ON.
A12 RTC_SCL Real-time clock IC serial clock.
B4 THML TX power AMP temperature sensing volt-
age.
B5 ALCL ALC level sensing voltage.
B7 DRESID DSP reset.
Low=Reset.
B9 MDAT Expander serial data.
C2 REFV Reference frequency adjustment voltage.
C4 IDL TX power AMP/driver AMP current sensing
voltage.
C5 DPTL SEND signal from the [DATA1]/[DATA2]
jack.
C7 WFML RSSI voltage in the WFM mode.
C9 MSTB1 BPF select expander serial strobe.
C11 UPWS USB peripheral devices power supply con-
trol.
High=A USB device is connected.
D1 RTC_IRQ Real-time clock interrupt request.
Real-time clock IC serial clock.
D2 UDRXD USB serial data.
D4 VDL Power supply voltage.
D5 REFL Refl ected wave in the TX signal sensing
voltage.
D8 MCK Expander serial clock.
D9 MSTB2 DDS fi lter select expander serial strobe.
D11 RTC_SDA Real-time clock IC serial data.
D15 DSTB Main expander serial strobe.
E4 UDTXD USB serial data.
E13 EDT EEPROM serial data.
E14 ECK EEPROM serial clock.
G3 HSK0 DSP handshake data. (1 of 2)
G4 HSK1 DSP handshake data. (2 of 2)
J4 PDV Power down detect.
Low=Power line is shutting down.
K1 USSENI PTT input through the connected USB de-
vice.
High=While transmitting.
K2 MMDK Microphone control data.
K3 USKI CW/RTTY input through the connected
USB device.
Low=While keying in the CW/RTTY.
M1 SKYS Keying input from the connected telegraph
key.
Low=While keying in the CW/RTTY.
M2 LTXD Front CPU communication data.
M5 PLDA Record/Playback audio data.
M7 DPWS The DSP IC power control.
High=While the DSP is used.
M9 DSPR DSP serial data.
N1 LRXD Front CPU communication data.
N2 RTKI RTTY keying input.
High=Inputting Space.
DESCRIPTION
BALL LINE
I/O
No. NAME
N3 SD_TXD microSD card serial data.
I
N4 REDA
I
N5 CRXD/
CBSY
N7 SD_PTC microSD card write protect mode detect.
I
N9 DSPCK
O
N14 RXS
O
P1 SD_CS
O
I
P2 SD_SCK microSD card serial clock.
P4 PLCK
I
O
P5 VBUS
O
P7 ESTA
O
P13 DRXD
I
P14 VRXS
I
R1 SD_RXD microSD card serial data.
I
R2 RECK
O
R4 CTXD
O
R5 PWRK
I
R6 HSENI
I
R7 SD_SENC microSD card insertion detect.
I
R8 DSPX
I
R9 EKEY
O
O
R10 SCRES
I/O
O
R14 URXS
O
I/O
R15 HRXS
O
I
I
I
I
I
I
I
O
O
O
O
I
I
3-10
DESCRIPTION
Record/Playback audio data.
CI-V data/Bus busy signal.
High=While in the write protect mode.
DSP data serial clock.
RX circuit (All bands) control.
High=While receiving.
microSD card chip select.
Low= While the inserted microSD card is
busy.
Record/Playback audio output
clock.
USB device connect detect.
High=A USB device is connected.
External antenna tuner START signal.
Low=Tuning start.
Low speed communication data from the
connected device.
VHF band RX circuit control.
High=While receiving on the VHF band.
Record/Playback audio input control clock.
CI-V data.
[PWR] input.
Low=Pushed.
External SEND signal input.
High=Transmitting.
High=A microSD card is inserted.
DSP serial data.
External antenna tuner KEY signal input.
Low= While tuning or when the tune is
failed.
Sub CPU reset control.
Low=Reset.
UHF band RX circuit control.
High=While receiving on the UHF band.
HF/50 MHz/70 MHz band RX circuit con-
trol.
High=While receiving on the HF band.
I/O
O
I
I
I
O
O
O
O
control O
I
O
I
O
I
O
O
I
I
I
I
I
O
O
O