Yamaha RX-797 Service Manual page 18

RX-797
IC602 : M30626FHPFP (FUNCTION (2) P.C.B.)
16-bit Microprocessor
No. Port
34 P64/CTS1/RTS1/CTS0/CLKS1
35 P63/TXD0/SDA0
36 P62/RXD0/SCL0
37 P61/CLK0
38 P60/CTS0/RTS0
39 P57/RDY/CLKout
40 P56
41 P55
42 P54
43 P53
44 P52
45 P51
46 P50
47 P47
48 P46
49 P45
50 P44
51 P43
52 P42
53 P41
54 P40
55 P37
56 P36
57 P35
58 P34
59 P33
60 P32
61 P31
62 Vcc2
63 P30
64 Vss
65 P27
66 P26
67 P25
68 P24
69 P23
70 P22
71 P21
72 P20
73 P17
74 P16
75 P15
76 P14
77 P13
78 P12
79 P11
80 P10
81 P07
82 P06
83 P05
84 P04
85 P03
86 P02
87 P01
88 P00
89 P107/AN7/KI3
90 P106/AN6/KI2
91 P105/AN5/KI1
92 P104/AN4/KI0
93 P103/AN3
94 P102/AN2
95 P101/AN1
96 Avss
97 P100/AN0
98 Vref
99 Avcc
100 P97/Adtrg
18
Name I/O Function
BSY O AF220 BUSY Signal Output
DTIS SO Input Selector Tx DATA
CEIS O Input Selector CE
CKIS SO Input Selector CLOCK
DTRZ O Rec/Zone2 selecter DATA
CKRZ O Rec/Zone2 selecter CLOCK
N.C. O
/EMP I For Flash Writing (LO)
CER O RDS CE
SCKR O RDS CLOCK
SDRR I RDS Rx DATA
SDTR O RDS Tx DATA
/CE I For Flash Writing (HI)
CEP O TUNER CE
SCKP O TUNER CLOCK
SDTP O TUNER Tx DATA
/TMU O TUNER MUTE
SDRP I+ TUNER Rx DATA
TUNED I+ TUNER TUNED
/ST I+ TUNER /ST
N.C. O
VIA O Video Input SelectorA
VIB O Video Input SelectorB
VRA O Video Rec SelectorA
VRB O Video Rec SelectorB
VZA O VIDEO Zone2 SelectorA
VZB O VIDEO Zone2 SelectorB
/SWMT O Sub Woofer Mute
Vcc MCU Power Supply, +5V
/CDMT O CD Direct Mute
Vss MCU Ground
/MIMT O Main IN Mute
PDon I+ Pure Direct ON Detect
CDon I+ CD Direct Detect
PLED O Pure Direct LED
CLED O CD Direct/TapeMonitor LED
PRY O Power Relay
N.C. O
HPRY O Head Phone Pelay
PDET IRQ Power Down Detect INT
SPSW IRQ SYSTEM Power SW INT(MasterPower)
REM IRQ Remote Controler INT
FBRY O Front B Speaker Relay
FARY O Front A Speaker Relay
VRup O Volume Up
VRdn O Volume Down
PRI I I Protection
/PSV O Power save mode
N.C. O
/BLK O FL Driver /BLK
ISA I Input Selector A
ISB I Input Selector B
LSBY O StandBy LED
N.C. O
N.C. O
REC AD Rec/Zone2 selecter
PRV AD PS Protection
PRD AD DC Protection
THML AD THM L Protection
THMR AD THM R Protection
KEY0 AD AD Key 0
KEY1 AD AD Key 1
Avss MCU AD Ground
DEST AD Destination Detect
Vref MCU AD Reference
Avcc MCU AD Power Supply
CEFD O FL Driver CE
(PullDown)
(PullUp)
(PullDown)
(PullDown)
(PullDown)
(PullDown)
(Vcc)
(Gnd)
(PullUp)
(PullUp)
(PullUp)
(PullUp)
(PullUp)
(PullUp)
(Gnd)
(Vcc)
(Vcc)