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4-8
Ball
No.
Line Name
Description
I/O
R4
CLOUT
CI-V/CLONE UART data.
(300–38400 bps)
O
R5
DSP_RESET
DSP reset control.
L=Reset.
O
R6
RTC_SCL
Serial clock to the real time clock
IC.
O
R7
PCON
Main power supply line control.
H= Power ON.
O
R9
SD_PTC
SD card write protect control.
H=Write protect.
O
R10
SCRES
Sub CPU reset.
O
R11
SCTRG
"TRG" signal to the sub CPU.
O
R12
SCTXS
"TXS" signal to the sub CPU.
O
R13
CK
Common serial clock to the D/A
converter and expander.
O
R14
MICSEL
External microphone connection
detect.
I
59
L_AFMUTE
AF output mute. (A band)
H=Mute.
O
56
MICMUTE
MIC mute switch control.
H= Mute.
O
27
DCSFT
DSP clock shift control.
L=+600 Hz shifted.
O
17
R_PLLSTB
PLL serial strobe. (Band B)
O
63
R_AFMUTE
RX AF mute control. (Band B)
L= Mute.
O
55
PLAY
Modulation signal line switching
control.
H= Recorded audio is transmitted.
O
22
VTX_C
VHF band transmit circuit power
control.
H= While transmitting.
O
23
UTX_C
UHF band transmit circuit power
control.
H= While transmitting.
O
20
L_PLLSTB
PLL serial strobe. (Band A)
O
*: Clock frequency shifting range.
Line name
CLSFT1
CLSFT2
Shifting range
Line state
H
H
–1.2 kHz
H
L
±0 kHz
L
L
+1.2 kHz
Ball
No.
Line Name
Description
I/O
1
L_REFC
Reference frequency control.
(Band A)
O
2
R_REFC
Reference frequency control.
(Band B)
O
7
SCRES
Sub CPU reset.
I
18
PLLCK
PLL serial clock.
O
19
PLLDATA
PLL serial data.
O
31
AF_SW
AF output control.
H= AF signal is output from the ex-
ternal speaker.
O
24
L_RMUTE
AF mute control. (Band A)
L=Mute.
O
25
R_RMUTE
AF mute control. (Band B)
L=Mute.
O
26
DTCS_SEL
Tone signal (CTCSS/DTCS) fi lter
switching control.
H=While sending DTCS signal.
O
34
MAIN_DASEL
Operating mode (FM/DV) switch-
ing control.
H= While operating in the DV
mode.
O
36
MIC1
Microphone gain control.
O
48
SCSCK
Sub CPU clock.
I
49
SCTXD
Sub CPU data to the main CPU.
I
50
SCRXD
Main CPU data.
O
51
MIC2
Microphone gain control.
O
52
SCTRG
"TRG" signal from the main CPU.
I
53
SCTXS
"TXS" signal from the main CPU.
I
57
VRX_RPT
Demodulated signal polarity
switching control.
H= While operating on the VHF
band.
O
58
URX_RPT
Demodulated signal polarity
switching control.
H= While operating on the UHF
band.
O
60
CLSFT3
Sub CPU clock frequency shift
control.
H=Shifted.
O
61
CLSFT2*
Main CPU clock frequency shift
control.
O
62
CLSFT1*
64
SCACK
Sub CPU "ACK" signal to the main
CPU.
O
• SUB CPU (MAIN UNIT: IC303)
• MAIN CPU (MAIN UNIT: IC300) (continued)