Yamaha RX-V377 Series Service Manual page 67

Pin
Port Name
No.
1 PK6/AIN14 N_FCT
2 PK7/AIN15 (no_use)
3 AVSS AVSS
4 VREFH VREFH
5 /RESET CPU_N_RST
6 MODE MODE
7 PL0/SDA0/SO0/TB0OUT HDMI_SDA
8 PL1/SCL0/SI0/TB1OUT HDMI_SCL
9 PL2/SCK0/TB2OUT HDMI_N_RST
10 PL3/INT0/TB3OUT HDMI_N_INT
11 PL4/TXD1/TB4OUT DSP_MOSI
12 PL5/RXD1/TB5OUT DSP_MISO
13 PL6/SCLK1/TB6OUT//CTS1 DSP_SCK
14 PL7/INT1/TB7OUT DSP_N_INT
15 DVSS DVSS
16 PM0/SCLK2/TB1N0//CTS2 DIR_N_CS
17 PM1/TXD2/TB1N1 DIR_N_RST
18 PM2/RXD2//ALARM DSP_N_CS
19 PM3/INT2/TB3OUT DIR_N_INT
20 PM4/SCLK3//CTS3 DSP_N_RST
21 PM5/TXD3 DSP_N_RDY
22 PM6/RXD3 DSP_FMT
23 PM7/INT3 DAC_N_CS
24 PN0/TXD4 FLASH_TXD
25 PN1/RXD4 FLASH_RXD
26 PN2/SCLK4/TB2IN0//CTS4 232C_N_CTS
27 PN3/INT4/TB2IN1/RMC0 232C_INT
28 PN4/TXD5 232C_RTS
29 PN5/RXD5 NCPU_SPI_REQ
30 PN6/SCLK5/TBFIN0//CTS5 NCPU_SPI_RDY
31 PN7/INT8/TBFIN1/RMC1 NCPU_AMUTE
32 PO0/TXD6/TB8OUT NCPU_SPI_MOSI
33 PO1/RXD6/TB9OUT NCPU_SPI_MISO
34 PO2/SCLK6/TBAOUT//CTS6 NCPU_SPI_SCK
35 PO3/INT9/TBBOUT NCPU_SPI_N_CS
36 PO4/TXD7/TBCOUT NCPU_N_RST
37 PO5/RXD7/TBDOUT NCPU_MODE
38 PO6/SCLK7/TBEOUT//CTS7 NDAC_N_MT
39 PO7/INTA/TBFOUT AMP_LMT
40 PP0//CS2 DIR_SDO
41 PP1 DIR_WCK
42 PP2//BLS0/SPDO OSDFS_MOSI
43 PP3//BLS1/SPDI OSDFS_MISO
44 PP4//WE/SPCLK OSDFS_SCK
45 PP5//OE/SPFSS OSDFS_N_CS
46 PP6//ALE OSDFS_BUS_SEL
47 DVDD3B DVDD3B
48 DVSS DVSS
Function Name
(P.C.B.)
I+ I+
MCU MCU
MCU MCU
MCU MCU
MCU MCU
HiZ HiZ
HiZ HiZ
O HiZ
I I
O O
I I
HiZ HiZ
I I
MCU MCU
O O
O HiZ
O O
I I
O HiZ
I I
HiZ HiZ
O O
HiZ HiZ
I+ I+
I+ I+
O O
O O
I– I–
I I
I I
O HiZ
I I
O O
O O
O HiZ
I– I–
O O
O O
O O
I I
O HiZ
I– I–
O O
HiZ HiZ
O HiZ
MCU MCU
MCU MCU
I/O
I+ I FCT detection
MCU MCU Microprocessor ground
MCU MCU Microprocessor power supply
MCU MCU Reset input
MCU MCU Mode terminal (GND)
HiZ HiZ HDMI Rx/Tx 12C SDA input and output
HiZ HiZ HDMI Rx/Tx 12C SCL output
O O HDMI RxTx reset
I I Interrupt input from HDMI RxTx
O O DSP, DIR, DAC synchronization data output
I I DSP, DIR synchronization data input
HiZ HiZ DSP, DIR, DAC synchronization clock output
I I Interrupt input from DSP
MCU MCU Microprocessor ground
O O DIR chip select
HiZ HiZ DIR reset
O O DSP chip select
I I DIR interrupt input
O O DSP reset
I I DSP Ready input
HiZ HiZ DSP Full Mute output
O O DAC chip select
HiZ HiZ Serial port for F/W writing
I+ I Serial port for F/W writing
I+ I Serial port for F/W writing
O O Serial port for F/W writing interrupt
O O Serial port for F/W writing
I– I– NET SPI request
I I NET SPI Ready
I I NET audio mute request
O O NET SPI data output
I I NET SPI data input
O O NET SPI clock output
O O NET SPI chip select output
O O NET CPU reset output
+3.3V: Normal operation / 0V: MAC address writing
I– I–
permission
O O Mute control
O O Limiter control output
O O DIR, SDO input for CDDA writing
I I DIR, WCK input for CDDA writing
O O OSD Flash synchronization data output
I– I– OSD Flash synchronization data input
O O OSD Flash synchronization clock output
HiZ HiZ OSD Flash chip select control from Microprocessor
Connection switching of Microprocessor SPI and HDMI
O O
OSD SPI to OSD Flash SPI
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
RX-V377/HTR-3067
Detail of Function
67