Icom ID-51E User Manual page 18

• CPU (LOGIC UNIT: IC5) (continued)
Pin
Line Name
No.
J13 IOEN Expander chip enable.
DSP clock shift control.
J15 DCSFT
L=+600 Hz shifted.
J2 BPLLSTB PLL serial strobe. (Band B)
Interrupt detection from the real
J4 RTC_IRQ time clock IC.
L= Alerm detected.
Noise level detection. (Band A)
K1 ANOISE
H= Noise signal is detected.
RX AF mute control. (Band B)
K13 BAFMUTE
L= Mute.
Modulation signal line (DV/FM)
switching control.
K14 D_AS
H= While transmitting in the DV
mode.
2nd IF fi lter (digital/analog) switch-
ing control.
K15 DAFS
H= While receiving in the DV
mode.
CI-V bus line communication sta-
K2 EBUSY tus detection.
L= Busy.
K3 IOSTB1 Expander serial strobe.
R3 line control.
L1 R3C
L= While recieiving.
SQL key input.
L12 SQL
L= Pushed.
Noise level detection (Band B).
L13 BNOISE
H= Noise signal is detected.
5VS power supply line control.
L14 PSC
L= While in the power save mode.
3VS power supply line control.
L15 3VC
H= Power ON.
Modulation signal line switching
L2 PLAY control.
H= Recorded audio is transmitted.
AM
power control.
L3 BAM
L= While receiving in the AM
mode.
M1 DASTB1 D/A converter serial strobe.
UART data (RS-232C).
M12 TX232
(4800/9600/38400 bps)
M14 ESIO EEPROM serial data.
Transmit circuit power control.
M15 T3C
H= While transmitting.
CI-V/CLONE UART data.
M2 CLOUT
(300–38400 bps)
M5 DSP_STB DSP serial strobe.
DSP power control.
M6 DSPC
H= DSP is ON.
Receive circuit power control.
M7 AR3C (Band A)
L=While receiving on band A.
M8 LCDRS LCD driver serial data.
M9 LCDCS LCD driver chip select.
CI-V/CLONE
N1 CLIN
(300–38400 bps)
GPS module operating mode
N12 G_HIB (Normal/Sleep) switching control.
L= While in the sleep mode.
Description
Air band receive circuit
UART data.
Pin
I/O Line Name
No.
O N15 ECK
O N2 SD_SENC
O
N3 SD_TXD
I N4 DSP_SI
N6 RTC_SDA
I
N7 APLLSTB
N9 LCDDT
O
P1 SD_CS
O
P12 GPSC
P13 RX232
O
P14 INTPTT
P2 SD_SCK
I
P4 DSP_CK
O
P5 DSP_PD
O
P6 LCDRES
I
R1 SD_RXD
I
R13 AFON
R14 EXTPTT
O
R2 DSP_SO
O
R5 DSP_RESET
R6 RTC_SCL
O
R8 LCDCK
O
O
O
I/O
O
O
O
O
O
O
O
I
O
4 - 9
Description
EEPROM serial clock.
microSD card insert detection.
L=Inserted.
Serial data to the attached mi-
croSD card.
DSP serial data.
Serial data to/from the real time
clock IC.
PLL serial strobe. (Band A)
LCD driver serial data.
Chip select to the attached mi-
croSD card.
GPS module power control.
H= Power ON.
RS-232C UART
(4800/9600 bps)
[PTT] key input.
L=Pushed.
Serial clock to the attached mi-
croSD card.
DSP serial clock.
DSP power down control.
H= Power down.
LCD driver reset.
L=Reset.
Serial data from the attached mi-
croSD card.
AF AMP power control.
External PTT input.
DSP serial data.
DSP reset control.
L=Reset.
Serial clock to the real time clock
IC.
LCD driver serial clock.
I/O
O
I
O
I
I/O
O
O
O
O
data.
I
I
O
O
O
O
I
O
I
O
O
O
O