Yamaha RX-V381 Service Manual page 70

RX-V381/HTR-3069
Pin
Port Name
No.
131 PL3/A3/RXIN1/TBFIN0
132 PL4/A4/I2C3SDA
133 PL5/A5/I2C3SCL
134 PL6/A6/I2C4SDA
135 PL7/A7/I2C4SCL
136 DVDD3
137 DVSS
138 PB0/A8/TB8OUT
139 PB1/A9/TB9OUT
140 PB2/A10/UT1DCD
141 PB3/A11/UT1DSR
142 PB4/A12/UT1DTR
143 PB5/A13/UT1RIN
144 PB6/A14//UT1CTS
145 PB7/A15//UT1RTS
146 DVDD3
147 DVSS
148 PB8/UT1TXD/UT1IROUT
149 PB9/UT1RXD/UT1IRIN
150 PC0/A0/A16/TB4IN0
151 PC1/A1/A17/TB4IN1
152 PC2/A2/A18/TB5IN0
153 PC3/A3/A19/TB5IN1
154 TEST
155 PC4/A4/A20//GEMG1
156 PC5/A5/A21/MT1IN
PC6/A6/A22/MTOUT0/
157
MT1TBOUT
PC7/A7/A23/MTOUT1/
158
MT1TBIN
159 PC8/INTB/ALE
160 PC9//CS0/TBAOUT
161 PC10//CS1/TB6IN0
162 PC11//CS2/TB6IN1
163 PK0/UT0TXD/UT0IROUT
164 DVDD3
165 DVSS
166 PK1/UT0RXD/UT0IRIN
167 PK2//BELL/UT0DCD
168 PK3//BELH/UT0DSR
169 PK4//WR/UT0DTR
170 PK5//RD/UT0RIN
171 PK6/WAIT//UT0CTS
172 PK7/BCLK//UT0RTS
173 PK8/INTC//BOOT
174 PM0/SC7TXD
175 PM1/SC7RXD
PM2/SC7SCK//SC7CTS/
176
TBEIN1
70
Function Name
(P.C.B.)
BT_CONNECT I
(no_use) O
(no_use) O
HDMI_SDA HiZ
HDMI_SCL HiZ
DVDD3 MCU MCU
DVSS MCU MCU
HDMI_N_RST O
(no_use) O
HDIN_HPD1 O
HDIN_HPD2 O
HDIN_HPD3 O
HDIN_HPD4 O
AUP_SEL O
VSEL1 O
DVDD3 MCU MCU
DVSS MCU MCU
VSEL2 O
(no_use) O
(no_use) O
5D_PON O
3D_PON O
DAC_PON O
TEST
DIR_SDO I
DIR_WCK I
USB_SEARCH I-
USB_BUSY I
USB_N_RST O
USB_IRPTO I-
J_N_TEST I+
HDA_N_DET O
(no_use) O
DVDD3 MCU MCU
DVSS MCU MCU
DIR_N_CS O
DIR_N_RST O
DSP_N_CS O
DSP_N_RST O
DSP_N_RDY I
DSP_FMT HiZ
DAC_N_CS O
FLASH_N_BOOT I+
DSP_MOSI O
DSP_MISO I
DSP_SCK HiZ
I/O
I I I Bluetooth connect input, No pairing: Low, Pairing: High
O O O
O O O
HiZ HiZ HiZ HDMI Rx/Tx I2C SDA input and output
HiZ HiZ HiZ HDMI Rx/Tx I2C SCL output
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
HiZ O O HDMI Rx/Tx (MN864788A) reset output
O O O
O O O HDMI IN1 HPD control output
O O O HDMI IN2 HPD control output
O O O HDMI IN3 HPD control output
O O O HDMI IN4 HPD control output
Switching DSD (channel DR2) route, DSP → HDMI
audio route L: HDMI → DSP (DSD channel DR2), H:
O O
DSP → HDMI (decoded route)
O O O Video selector control signal
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
O O O Video selector control signal
O O O
O O O
HiZ O O H: Power supply ON
HiZ O O H: Power supply ON
HiZ O O H: Power supply ON
Be sure to release.
I I I DIR_SDO input for CDDA writing
I I I DIR_WCK input for CDDA writing
I- I- I- Flag input during search from USB device
I I I Input during command analysis from USB device
HiZ O O USB device reset output
I- I- I- Host interrupt input from USB device
I+ I+ I
HD audio decode judgment detection L: Valid, H:
O O O
Invalid
O O O
MCU MCU Microprocessor power supply
MCU MCU Microprocessor ground
O O O DIR chip select
HiZ HiZ HiZ DIR reset
O O O DSP chip select
HiZ O O DSP reset
I I I DSP Ready input
HiZ HiZ HiZ DSP Full Mute output H: Mute
O O O DAC chip select
I+ I+ I L: Single boot mode (boot from built-in MaskROM)
O O O DSP, DIR, DAC synchronization data output
I I I DSP, DIR synchronization data input
HiZ HiZ HiZ DSP, DIR, DAC synchronization clock output
Detail of Function