Yamaha RX-V381 Service Manual page 68

RX-V381/HTR-3069
Pin
Port Name
No.
40 PM6/SC4TXD
41 PM7/SC4RXD
PM8/SC4SCK//SC4CTS/
42
TBDOUT
43 PM9/SC5TXD
44 PM10/SC5RXD
45 /NMI
46 XT1
47 MODE
48 XT2
49 /RESET
PM11/SC5SCK//SC5CTS/
50
TBEOUT
51 PM12/SC6TXD
52 PM13/SC6RXD
PM14/SC6SCK//SC6CTS/
53
TBFOUT
54 PF3/SC0TXD
55 PF4/SC0RXD/TB9IN1
PF5/SC0SCK//SC0CTS//
56
DMAREQA/TB9IN0
57 PF6/SC1TXD
58 PF7/SC1RXD/TBAIN1
PF8/SC1SCK//SC1CTS//
59
DMAREQB/TBAIN0
60 DVDD3
61 DVSS
62 PF9/SC2TXD
63 PF10/SC2RXD/TBBIN1
PF11/SC2SCK//SC2CTS//
64
DMAREQC/TBBIN0
65 PF12/INT8/RXIN0
66 PF13/CEC
67 PE5/TRACEDATA0
68 PE6/TRACEDATA1
69 PE7/TRACEDATA2
PE8/INT9/TRACEDATA3//
70
ADTRG
71 DVDD3
72 DVSS
PE9/INTA/TRACECLK/
73
SCOUT
74 PG0/SP2FSS
75 PG1/SP2DO
76 PG2/SP2DI
77 PG3/SP2CLK
78 PG4/I2C0SDA/SP2FSS
79 PG5/I2C0SCL/SP2FSS
80 PG6/I2C1SDA
81 PG7/I2C1SCL
82 PG8/TB0IN0
83 PG9/TB1IN0
68
Function Name
(P.C.B.)
(no_use) O
(no_use) O
FL_PON O
VOL_SCK O
VOL_MOSI O
NMI_N_INT IRQ IRQ
XT1 MCU MCU
MODE MCU MCU
XT2 MCU MCU
CPU_N_RST MCU MCU
EEP_SPI_N_CS O
EEP_SPI_MOSI SO
EEP_SPI_MISO SI
EEP_SPI_SCK O
232C_DBG_MOSI HiZ
232C_DBG_MISO I+
TUN_N_INT I
(no_use) O
(no_use) O
FLD_N_RST O
DVDD3 MCU MCU
DVSS MCU MCU
FLD_MOSI O
FLD_N_CS O
FLD_SCK O
REM_IN IRQ IRQ
HDMI_CEC IO+ IO+
I_PRT I
HP_N_DET I
MIC_N_DET I
PSW_N_DET IRQ IRQ
DVDD3 MCU MCU
DVSS MCU MCU
ACPWR_DET IRQ IRQ
USB_SPI_N_CS O
USB_SPI_MOSI O
USB_SPI_MISO I
USB_SPI_SCK O
USB_SDA HiZ
USB_SCL HiZ
PRY O
TRANS_RY O
HPRY O
SPRY_5CH O
I/O
O O O
O O O
HiZ O O FL driver +VP control output
O O O Electronic volume flip-flop synchronization data output
O O O Electronic volume flip-flop synchronization data output
IRQ IRQ No-maskable interrupt
MCU MCU Low frequency oscillation circuit input
MCU MCU Mode terminal (GND)
MCU MCU Low frequency oscillation circuit output
MCU MCU Reset input
HiZ O O EEPROM chip select
SO SO SO EEPROM synchronization data output
SI SI SI EEPROM synchronization data input
O O O EEPROM synchronization clock output
HiZ HiZ HiZ Serial port for F/W writing, debugging
I+ I+ I Serial port for F/W writing, debugging
I I I Tuner GPIO2 input
O O O
O O O
O O O FL driver reset
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
O O O FL driver synchronization data output
O O O FL driver chip select
O O O FL driver synchronization clock output
IRQ IRQ Remote control pulse input
IO+ HiZ Microprocessor CEC control
I I Overcurrent protection detection
I I I Headphone detection L: Headphone exists
I I I Microphone detection L: Microphone exists
Power system switch (Power, Scene) detection L:
IRQ IRQ
SYAND BY key ON
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
IRQ IRQ AC power detection L: Powerdown
O O O USB device SPI chip select output
HiZ O O USB device SPI data output
I I I USB device SPI data input
O O O USB device SPI clock output
HiZ HiZ HiZ USB I2C synchronization data input and output
HiZ HiZ HiZ USB I2C synchronization clock output
O O O Power relay control H: On
HiZ O O Switching transformer winding
HiZ O O Headphone relay control
HiZ O O Speaker relay control (Front/Center/Surround)
Detail of Function