Yamaha RX-V475 Service Manual page 80

RX-V475/HTR-4066/RX-V500D
Pin Function Name
Port Name
No.
1 VREF VREF
2 AVCC AVCC
3 SIN4 EEP_MISO
4 SOUT4 EX_MOSI
5 CLK4 EX_SCK
6 P9_4 +5EX_PON
7 DA0 AMP_LMT
8 SOUT3 DSP_MOSI
9 SIN3 DSP_MISO
10 CLK3 DSP_SCK
11 P14_1 HDMI_N_RST
12 P14_0 TUN_N_RST
13 BYTE BYTE
14 CNVSS E8A_CNVSS
15 P8_7 (no use)
DAB_PON
16 P8_6 DIAG_FCT
17 /RESET CPU_N_RST
18 XOUT XOUT
19 VSS DGND
20 XIN XIN
21 VCC1 +3.3M
22 CEC HDMI_CEC
23 N_INT2 DSP_N_INT
24 N_INT1 HDMI_MUTE
25 N_INT0 HDMI_N_INT
26 TA4IN DIR_N_INT
27 P8_0 (no use)
28 P7_7 DIR_N_RST
29 P7_6 DIR_N_CS
30 TA2IN TUN_N_INT
31 P7_4 NCPU_SPI_REQ
32 TA1IN ACPWR_DET
33 P7_2 NCPU_SPI_RDY
34 SCL2 HDMI_SCL
35 SDA2 HDMI_SDA
36 TXD1 E8A_TXD
37 VCC1 +3.3M
38 RXD1 E8A_RXD
39 VSS DGND
40 CLK1 E8A_SCLK
41 P6_4 E8A_BUSY
42 SDA0 TUN_SDA
43 SCL0 TUN_SCL
44 P6_1 (no use)
45 P6_0 (no use)
46 P13_7 VOL_MOSI
47 P13_6 VOL_SCK
48 P13_5 I_PRT
49 P13_4 TRANS_RY
50 P5_7 DCDC_PON
51 P5_6 MT_N_SW
52 P5_5 E8A_N_EPM
80
I/O
(P.C.B.)
MCU MCU MCU
MCU MCU MCU
SI SI O
SO SO O
SO SO O
O O O
DA O O
SO O O
SI I- I-
SO O O
O O O
O O O
MCU MCU MCU
MCU MCU MCU
O O O
O O O
O O O
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
IO IO I+
IRQ IRQ IRQ
IRQ I- I-
IRQ I- I-
TMR I O
O O O
O O O
O O O
TMR O O
I I I
TMR I+ I+
I I I
SO O O
SI O O
SO SO I+
MCU MCU MCU
SI SI I+
MCU MCU MCU
SI SI I+
I- I- I-
SI O O
SO O O
O O O
O O O
O O O
O O O
I- I- I-
O O O
O O O
O O O
I- I- I-
Detail of Function
MCU AD standard voltage
MCU Microprocessor power supply
SI EEPROM / Expansion Flash synchronization data input
SO FL driver / EEPROM / Expansion Flash synchronization data input
SO FL driver / EEPROM / Expansion Flash synchronous clock output
O
O Limiter control output
O DSP, DIR, DAC synchronization data output
I- DSP, DIR, DAC synchronization data input
O DSP, DIR, DAC synchronous clock output
O HDMI RxTx reset
O Tuner reset
MCU Data bus width reshuffling input / Low: Single chip mode (16bit)
MCU Processor mode select / Low: Single chip mode
O
O
O Diag OK: Output High / Diag NG: Output Low (default)
MCU Reset input
MCU Oscillation circuit output
MCU Microprocessor ground
MCU Oscillation circuit input
MCU Microprocessor power supply
I+ Microprocessor CEC control
O Interrupt input from DSP
I- HDMI MUTE input / H: Mute
I- Interrupt input from HDMI RxTx
I DIR interrupt input
O
O DIR reset
O DIR chip select
O Tuner GPIO2 input
I NET SPI request
I+ AC power detection / L: Power down
I NET SPI ready
O Video decoder, A-video switch I2C SCL output
O Video decoder, A-video switch I2C SDA input and output
I+
MCU Microprocessor power supply
I+
MCU Microprocessor ground
I+
I-
O Tuner I2C, Apple co-processor synchronization data input and output
O Tuner I2C, Apple co-processor synchronous clock output
O
O
O Electronic volume flip-flop synchronization data output
O Electronic volume flip-flop synchronous clock output
I- Overcurrent protection detection
O
O
O Mute control (Subwoofer)
I-
(RX-V475/HTR-4066)
(RX-V500D)