Onkyo TX-SR702

TX-SR702/E
MICROPROCESSOR-TERMINAL DESCRIPTIONS
No. Terminal Symbol I/O Act. Description
1 Vref Vref I Connect to Vcc. Reference voltage input terminal for A/D converter.
2 AVcc AVcc I Connect to Vcc. Power supply terminal for A/D converter.
3 P97/~ADTRG/SIN4 FLCS O L Chip selector output terminal for FL tube driver
4 P96/ANEX1/SOUT4 FLSDO O H Data output terminal for FL tube driver
5 P95/ANEX0/CLK4 FLCLK O CLK Clock output terminal for FL tube driver
6 P94/DA1/TB4IN ~FLRST O L Reset signal output terminal for FL tube driver
7 P93/DA0/TB3IN
8 P92/TB2IN/SOUT3 OSDSDO O H Data output terminal for on-screen display IC
9 P91/TB1IN/SIN3 OSDCS O H Chip select output terminal for on-screen display IC
10 P90/TB0IN/CLK3 OSDCLK O CLK Clock output terminal for on-screen display IC
11 P141
12 P140
13 BYTE BYTE I Connect to Vss. Change over input terminal of external data bus width.
14 CNVss CNVss I Connect to Vss via a resistor. Change over terminal of processor mode.
15 P87/XCIN
16 P86/XCOUT
17 ~RESET ~RESET I Reset signal input terminal for microprocessor.
18 Xout Xout O Oscillation circuit output terminal of main clock.
19 Vss Vss I Connect to a ground terminal.
20 Xin Xin I Oscillation circuit input terminal for main clock
21 Vcc1 Vcc1 I 2.7V<Vcc2
㻡
Vcc1<5.5V
22 P85/~NMI ~NMI I L Connect to Vcc via a resistor.
23 P84/~INT2 REMIN I L Remote control signal input terminal
24 P83/~INT1 POFF I L Power failure detection input terminal
25 P82/~INT0 ~VSYNC I L Vertical synchronization detection input terminal
26 P81/TA4IN/~U SYNC I H Synchronization detection input terminal
27 P80/TA4OUT/U ~ISS I L
28 P77/TA3IN VDSTB O H Strobe signal output terminal for video switch
29 P76/TA3OUT VDSDO O H Data output terminal for video switch
30 P75/TA2IN/~W VDCLK O CLK Clock output terminal for video switch
31 P74/TA2OUT/W
32 P73/~CTS2/~RTS2/TA1IN/~V
33 P72/CLK2/TA1OUT/V VCRST O H Reset signal output terminal for Y/C separation and video converter ICs.
34 P71/RXD2/SCL2/TA0IN/TB5IN VCSCL I/O H Clock signal input/output terminal for Y/C separation and video converter ICs.
35 P70/TXD2/SDA2/TA0OUT VCSDA I/O H Data input/output terminal for Y/C separation and video converter ICs.
36 P67/TXD1/SDA1 232TX/FTXD O H Data transfer terminal for RS-232C and flash writer.
37 Vcc1 Vcc1 I 2.7V<Vcc2
㻡
Vcc1<5.5V
38 P66/RXD1/SCL1 232RX/FRXD I H Data received terminal for RS-232C and flash writer.
39 Vss Vss I Connect to ground terminal.
40 P65/CLK1 FCLK I CLK Clock input terminal for flash writer
41 P64/~CTS1/~RTS1/~CTS0/CLKS
1
FBUSY I H Busy terminal for flash writer
42 P63/TXD0/SDA0 DIGSDO O H Common data output terminal for digital section
43 P62/RXD0/SCL0 DIGSDI I H Data input terminal from DSP IC
44 P61/CLK0 DIGCLK O CLK Common clock output terminal for digital section
45 P60/~CTS0/~RTS0 ~DSPRST O L Reset signal output terminal for DSDP IC
46 P137 ~DSPFINT I H Input terminal to inform the status change of DSP IC.
47 P136 ~DSPINT I H Input terminal to inform the status change of DSP IC.
48 P135 DSPFCS O H Chip select output terminal of DSP IC
49 P134 DSPCS O H Chip select output terminal of DSP IC
50 P57/~RDY/CLKOUT DIRRST O L Reset signal output terminal of DIR IC
51 P56/ALE DIRCS O L Chip select output terminal for DIR IC
52 P55/~HOLD ~FEPM I L Connect to ground terminal via resistor. Setting terminal of flash writer.
53 P54/~HLDA (DIRSDI) I H Data input terminal of DIR IC
54 P133 DIRINT I H Unlock detection terminal of DIR IC
55 P132
56 P131 ADCRST O L Reset input terminal for multi channel A/D converter
57 P130
58 P53/BCLK FSWCLK O CLK Clock signal output terminal of function switch
59 P52/~RD FSWDAT O H Data output terminal of function switch
60 P51/~WRH/~BHE FSWSTB O H Strobe signal output terminal of function switch
61 P50/~WRL/~WR ~FCE I L Connect to Vcc2 terminal via resistor. Setting terminal of flash writer.
62 P127 Z2BDDAT O H Data output terminal to volume and tone control IC for zone 2.
63 P126 Z2BDCLK O H Clock output terminal to volume and tone control IC for zone 2.
64 P125 Z2BDMUT O H Muting signal output terminal to volume and tone control IC for zone 2.