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M EXPLANATION
OF
IC:
a. PD178018AGC-557-3B9
052-1912-01
MASTER MICRO COMPUTER
1.Outward
Form : 80 pins QFP
2.Terminal Description
pin
pin
pin
3:
pin
pin
pin
ant
pin
7:
pin
8:
pin 9
pin 10
pin 11
pin 12
pin 13
pin 14
pin 16
pin 17
pin 18
pin 19
pin 20 :
pin 21
pin 22
pin 23
pin 24
pin 25
pin 26 :
pin 27
pin 28
pin 29 :
: VDD
: FM OSC
: AM OSC
: GND
: AM/FM EO
: AM/FM FO
pin 30
pin 31
pin 32
pin 33
pin 34
pin 35
pin 36 :
: NC
: NC
: SD/ST_IND
:
: RDS MUTE
:
pin 37
pin 38
pin 39
pin 40
pin 41
pin 42
pin 43
pin 44
pin 45 :
pin 46 :
ARX4670R/ARX4670RB/RAX4671R
1: KEY-A/D
2: RDS S_METER
RDS_NOISE
: VOL CW
:VOLCCW
:
: NOISE_DISCHG
:O
LCD_SI
LCD_SO
: LCD_SCK
: LCD_CE
: C-BUS SRQ :
: C-BUS_SI
: C-BUS_SO
: C-BUS_SCK :
pin id:
4
: SYS_MUTE
: REM +5
: STAND BY
: E_VOLCLK
:
E_VOL DATA
NC
: GND
: VDD
: MODE1 FM/AM
:O
: MODE2 ANT
: MUTE SPEED
IF_REQ
: ST
: AM IF CNT
FM IF CNT
GND
: AM_DX/LO
: AMP REM_DET
a
: SLAVEON
: |
: MASTER_ON
NC
FM_DX/LO
O---|00|--|--
pat
©
:O
70
: FUNC/EJECT/DCP detection terminal for A/D
converter
: RDS S_METER detection terminal for A/D co-
nverter
: RDS NOISE detection terminal for A/D conve-
tter
: Use for rolling volume
: Use for rolling volume
: Noise is off
: Serial data communication line to LCD Contr-
ol iC
: Serial data communication line to LCD Contr-
ob IC
: Serial data communication line to LCD Contr-
ol IC
: Serial data communication line to LCD Contr-
ob iC
1 : "C-BUS" Serial data communication line
|: "C-BUS" Serial data communication line
O
: "C-BUS" Serial data communication line
O
: "C-BUS" Serial data communication line
Oo : NC
10%
oO
oO
(8)
oO
Output mute. While it is "LOW", mute is "ON"
: REM 5V power supply controi terminal
: Power supply !C control terminal
: E_VOL use
: EVOL use
: GND
: VDD
: While "HI"=FM and "LO*=AM, power supply is
"ON"
©
: While "HI"=ANT, power supply is "ON"
°
(e)
co)
: 0
: During RDS follow-up motion, mute speed at
"LO"; usually it is at "HI"
: During seeking, itis at "HI"; while detecting
RDS SD, it is at "LO"
: Usually input "ST" lights at "LO"; always at "HI"
during seeking
; AM IF counter
: FM IF counter
: VDD
: FM VCO input terminal
: AM VCO input terminal
: GND
: AM/FM PLL VT
: AM/FM PLL VT
: GND
: GND
: GND
: While AM/FM SD IN/FM ST is "0", "ST" fights
: During RDS follow-up motion, mute is at *HI";
usually it is at "LO"
: AM DX/LO output terminal, LOCAL is at "HI"
: While protecting circuit motion, it is at "HI"
: NC
> : O :NC
rae 2 ae
O : FM DX/LO output terminal, LOCAL is at "HI"
NC
-6-
pin 47
pin 48
pin 49
pin 50
pin 51
pin 52
pin 53
pin 54
pin 55
pin 56
pin 57
pin 58
pin 59
pin 60
pin61
pin 62
pin 63
pin 64
pin 65
pin 66
pin 67
pin 68
pin 69
pin 70
pin 71
pin 72
pin 73
pin 74
pin 75
pin 76
pin 77
pin 78
pin 79
pin 80
: M-MOTOR
: MECH-ON
: PHONE AUDIO
H a l |
>NC
: STAND-BY- sw
: APC-DET
> NC
: FWD/REV
:P2
7P4
: BNR-B/C
: BNR-ON
:L/M
: RDS DATA
: RDS CLK
:B/U DET
: ACC
IN
: REMOCON
:
: KEY-INT
: SBSY
: PHONE-INT
:
: CPU-REG
: GND
> X-OUT
: X-IN
: OSC-REG
: VDD
: RESET
>NC
: REEL-PULSE
: MODE-SW
:NC
: TAPE-IN
:
: APC- "SENS(MU
oO
: 0
|
!
O
:0
Oo
Oo
ae |
oO
!
end
|
|
i
It
!
j
1
1
!
1
1
TE)
20.
: Outputs signal terminal for MECH MOTOR
: Outputs mechanism ON signal
: GND.
: GND.
: Inputs Reel pulse signal input.
: GND.
: STAND BY POSITION SW.
: MODE SW
: GND.
: Tape loading start detection terminal.
Outputs APC sensitiwity switching signal.
Outputs LOW in play.
: Inputs "HI" in playing unnecorded part.
: GND.
: Outputs LOW in FORWARD.
: Outputs for cassette mechanism.
: Outputs motors forward/reverse control.
: NC.
: GND.
> LW="HI", MW="LO"
: RDS data input terminal
: RDS clock input terminal
: B/U detecting terminal
: ACC detecting terminal
: Remote control
: To 1 pin
: Connected to CD MECH
: Phone interrupted
: 0.047 » F to GND
: GND
: X-TAL 4.5MHz
X-TAL 4.5MHz
: 0.047 « F to GND
: VDD
: System reset with 22K to 68 pin
CD MECH : LOADING MOTOR CONTROL
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