Yamaha HTR-3072, Service Manual

Page: 67 / 133

Pin
No.
Function Name I/O Detail of Function
2 TX0HPD I TX port 0 Hot Plug Detect
Pin
No.
Function Name I/O Detail of Function
73 RX0P5V I RX port 0 Input for 5V Power detection
72 RX1P5V I RX port 1 Input for 5V Power detection
71 RX2P5V I RX port 2 inputs for 5V Power detection
70 RX3P5V I RX port 3 Input for 5V Power detection
Pin
No.
Function Name I/O Detail of Function
111 TX0ARCIN I TX port 0 Audio Return Channel Input
Pin
No.
Function Name I/O Detail of Function
118 YSCLK/XI I System Clock input pin / Oscillator pin
The clock used as a system clock besides
I2C, SPI, and CEC is inputted.
This can use a crystal oscillator by
combining it with NC/XO pin.
In any case, please input 27 MHz.
119 NC/XO O Open pin / Oscillator pin
This can use a crystal oscillator by
combining it with SYSCLK/XI pin.
Pin
No.
Function Name I/O Detail of Function
115 NRESET I Reset input pin
Assert this pin Low for at least 100 ns.
Pin
No.
Function Name I/O Detail of Function
114 HSCL0 I HOST IF 0 host clock
*
When this is pulled up externally, the
recommended value is 4.7k to 10k-ohm.
116 HSDA0 I/O HOST IF 0 host data
*
Because this is an open drain pin, it
should be pulled up externally.
The recommended value is 4.7k to
10k-ohm.
68 NIRQ1 O Interrupting flag for HDMI control Low
Active
*
Because this is an open drain pin, it
should be pulled up externally.
The recommended value is 4.7k to
10k-ohm.
13 NIRQA0 O Interrupting flag for Audio Output 0 control
Low Active
*
Because this is an open drain pin, it
should be pulled up externally.
The recommended value is 4.7k to
10k-ohm.
12 NOSDIRQ O Interrupting flag for OSD control Low
Active
*
Because this is an open drain pin, it
should be pulled up externally.
The recommended value is 4.7k to
10k-ohm.
Pin
No.
Function Name I/O Detail of Function
124 SCLK/LPSA1 I/O Initial State is input. (During and after
reset)
You need set the control register in order
to change the mode as follows.
HOST IF Mode: SPI Slave Clock Input
External Memory IF Mode: SPI Master
Clock Output
This is exclusive pin and the same as
LPSA1 (I2C Local Port Slave Address)
125 MOSI/LPSA0 I/O Initial State is input. (During and after
reset)
You need set the control register in order
to change the mode as follows.
HOST IF Mode: SPI Slave Data Input
External Memory IF Mode: SPI Master
Data Output
This is exclusive pin and the same as
LPSA0 (I2C Local Port Slave Address)
127 MISO I/O
(PU
*
)
Initial State is input. (During and after
reset)
You need set the control register in order
to change the mode as follows.
HOST IF Mode: SPI Slave Data Output
External Memory IF Mode: SPI Master
Data Input
128 NCS I/O
(PU
*
)
Initial State is input. (During and after
reset)
You need set the control register in order
to change the mode as follows.
HOST IF Mode: SPI Slave Chip Select
Input
External Memory IF Mode: SPI Master
Chip Select Output
HPD Pins HOST(I2C) I/F Pins
Power Detect Pins
Audio Return Channel Pins
System Clock Pins
SPI I/F for controlling OSD
*
PU: Pull Up resistance embedded
Control Pins
67
RX-V385/HTR-3072
RX-V385/HTR-3072