Yamaha DSP-AX1/RX-V1 Service Manual page 43

IC27 : M30624FGFP (P.C.B. FUNCTION)
µ
16 bit -COM (Main CPU)
No. PORT Name
85 P03 PRY
86 P02 VLRB
87 P01 VLRA
88 P00 PRI
89 AN7 MTER
90 AN6
91 AN5 KEY1
92 AN4 KEY0
93 AN3
94 AN2 THM
95 AN1 PRD
96 AVSS AVSS
97 AN0 PRV
98 VREF VREF
99 AVCC AVCC
100 P97
(Note 1) Pin 61, 63 Tuner Mode 0 and 1
Tuner Mode 1 Tuner Mode 0
0 0
0 1
1 0
1 1
IC1 : M30624FGFP (P.C.B. DSP)
µ
16 bit -COM (Sub CPU)
P07/D7
P06/D6
P05/D5
P04/D4
P03/D3
P02/D2
P01/D1
P00/D0
P107/AN7/K13
P106/AN6/K12
P105/AN5/K11
P104/AN4/K10
P103/AN3
P102/AN2
P101/AN1
AVSS
P100/AN0
VREF
AVCC
P97/ADTRG/SIN4
I/O Function
O Power Relay
I Volume B
I Volume A
I I Protection
AD Tuner Meter
AD Not used
AD Key State 1
AD Key State 0
AD Not used
AD Thermal Detect
AD DC Protection
VSS Ground for AD
AD V Protection
VCC Reference voltage for AD
VCC Power Supply for AD
O Not used
Tuner Frequency
AM : 531-1611kHz(9kHz step)
AM : 530-1710kHz(10kHz step)
AM : 531-1611kHz(9kHz step)
DSP-AX1
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
FM : 76.0-90.0MHz(100kHz step)
FM : 87.5-107.9MHz(200kHz step)
FM : 87.5-108.0MHz(50kHz step)
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
DSP-AX1/RX-V1
Power On Power Off Backup
O OL OL
I I OL
I I OL
I I OL
I I I
I I I
I I I
I I I
I I I
I I I
I I I
VSS VSS VSS
I I I
VCC VCC VCC
VCC VCC VCC
OL OL OL
P44/CS0
P45/CS1
P46/CS2
P47/CS3
P50/WRL/WR
P51/WRH/BHE
P52/RD
P53/BCLK
P54/HLDA
P55/HOLD
P56/ALE
P57/RDY/CLKOUT
P60/CTS0/RTS0
P61/CLK0
P62/RXD0
P63/TXD0
P64/CTS1/RTS1/CTS0/CLKS1
P65/CLK1
P66/RXD1
P67/TXD1
40