Yamaha YHT-196 Service Manual page 57

Function
P i n
Port Name Name
No.
(P.C.B.)
1 TB4IN N_TUN_INT
2 DA0 AMP_LMT
3 SOUT3 DSP_MOSI
4 SIN3 DSP_MISO
5 CLK3 DSP_SCK
6 BYTE BYTE
7 CNVSS E8A_CNVSS
8 P8_7 VOL_RB
9 P8_6 VOL_RA
10 N_RESET N_CPU_RST
11 XOUT XOUT
12 VSS DGND
13 XIN XIN
14 VCC1 +3.3M
15 NMI HDM_CEC
16 N_INT2 REM_IN
17 N_INT1 HDM_MUT
18 N_INT0 HDM_INT
19 P8_1 N_MIC_DET
20 P8_0 HTX_PON
21 TA3IN N_DSP_INT
22 P7_6 (no use)
23 TA2IN N_PDET
24 P7_4 (no use)
25 P7_3 N_FLD_RST
26 P7_2 N_FLD_CS
27 SCL2 HDM_SCL
28 SDA2 HDM_SDA
29 TXD1 E8A_TXD
30 RXD1 E8A_RXD
31 CLK1 E8A_SCLK
32 P6_4 E8A_BUSY
33 SDA0 TUN_SDA
34 SCL0 TUN_SCL
35 P6_1 N_HRX_RST
36 P6_0 N_HTX_RST
Full on Power off MCU sleep
TMR O O
Low Fix Low Fix
DA O O
Low Fix Low Fix
SO O O
Low Fix Low Fix
SI I- I-
SO O O
Low Fix Low Fix
MCU MCU MCU
MCU MCU MCU
I+ I+ I+
I+ I+ I+
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
MCU MCU MCU
I+ I+ I+
IRQ IRQ IRQ
IRQ I- I-
O
IRQ I- I-
I- I- I-
O O O
High Act Low Fix Low Fix
TMR I+ O
Low Fix
O O O
Low Fix Low Fix Low Fix
TMR I+ I+
O O O
Low Fix Low Fix Low Fix
O O O
Low Act Low Fix Low Fix
O O O
Low Act Low Fix Low Fix
SI O O
Low Fix Low Fix
SO O O
Low Fix Low Fix
SO SO I+
SI SI I+
O O I+
I- I- I-
SI O O
O Low Fix Low Fix
SO O O
Low Fix Low Fix
O O O
Low Act Low Fix Low Fix
O O O
Low Act Low Fix Low Fix
HTR-2064/NS-B20/NS-C20/NS-SWP20
AC off Detail of Function
O
Tuner GPIO2 input
Low Fix
O
Limiter control output
Low Fix
O
Synchronous data output for DSP, DIR, DAC
Low Fix
I- Synchronous data input for DSP, DIR, DAC
O
Synchronous clock output for DSP, DIR, DAC
Low Fix
Data but width change input
MCU
When in single chip mode: L (16 bit)
Processor mode select
MCU
Low: Single chip mode
I+ Volume rotary encoder B
I+ Volume rotary encoder A
MCU Reset input
MCU Oscillation circuit output
MCU Microprocessor GND
MCU Oscillation circuit input
MCU Microprocessor power supply
I+ HDMI CEC input
I Remote control pulse input
I- HDMI mute input
H: Mute
I- Interrupt input from HDMI Rx
MIC detection
I-
L: MIC available
O HDMI Tx +5V power regulator control
Low Fix H: Regulator ON
I+
Interrupt input from DSP
O
Low Fix
AC power detection
I+
L: Power down
O
Low Fix
O
FL driver reset
Low Fix
O
FL driver chip select
Low Fix
O
HDMI Rx/Tx I2C SCL output
Low Fix
O
HDMI Rx/Tx I2C SDA input/output
Low Fix
I+
I+
I+
I-
O
Synchronous data input/output for tuner I2C
Low Fix
O
Synchronous clock output for tuner I2C
Low Fix
O
HDMI Rx reset
Low Fix
O
HDMI Tx reset
Low Fix
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