Yamaha MCR-B043 Service Manual page 44

MCR-B043/MCR-B043D/NS-BP83
Pin
Port Name
No.
1 P96/SOUT4/ANEX1 FL_MOSI
2 P95/CLK4/ANEX0 FL_SCK
3 P94/TB4in/PWM1/DA1 FL_N_RST
4 P93/TB3in/PWM0/DA0
5 P92/TB2in/PMC0/SOUT3 VOL_RA
6 P91/TB1in/PMC1/SIN3 VOL_RB
7 P90/TB0in/CLK3
8 BYTE BYTE
9 CNVss CNVSS
10 P87/Xcin
11 P86/Xcout
12 /RESET N_RST
13 Xout XOUT
14 Vss VSS
15 Xin XIN
16 Vcc1 VCC
17 P85/NMI/SD/CEC NMI
18 P84/INT2/ZP RTC_N_INT
19 P83/INT1 PWR_DET
20 P82/INT0 USB_N_CHARGING
21 P81/TA4in/U/CTS5/ TUN_TUND
RTS5
22 P80/TA4out/U/RXD5/SCL5 BT_MISO
23 P77/TA3in/CLK5 OC_N_FLG
24 P76/TA3out/TXD5/SDA5 BT_MOSI
25 P75/TA2in/W AMP_HOPP
26 P74/TA2out/W
27 P73/TA1in/V/CTS2/RTS2 AMP_N_SLEEP
28 P72/TA1out/V/CLK2 AMP_N_MUTE
29 P71/TA0in/TB5in/ EP_SCL
RXD2/SCL2/SCLMM
30 P70/TA0out/TXD2/ EP_SDA
SDA2/SDAMM
31 P67/TXD1/SDA1 TXD1
32 P66/RXD1/SCL1 RXD1
33 P65/CLK1 CLK1
34 P64/CTS1/RTS1/ BUSY
CTS0/CLKS1
35 P63/TXD0/SDA0 TUN_SDA
36 P62/RXD0/SCL0 TUN_SCL
37 P61/CLK0 DAB_N_RST
38 P60/RTCout/CTS0/RTS0
39 P57/CLKout/RDY VP_PON
40 P56/ALE AUDIO_PON
44
I/O
Function Name
(P.C.B.)
O
O
I
I
O
MCU
MCU
O
O
MCU
MCU
MCU
MCU
MCU
MCU
IRQ
IRQ
IRQ
I
O
UART
I
UART
O
O
O
O
I2C
I2C
MCU O
MCU
MCU
MCU O
I2C
I2C
I2C
I2C
O
O
O
O
O
[SPI] SPI communication for FL driver
[SPI] SPI communication for FL driver
RESET signal for FL driver / Reset when Low
When in single chip mode: Vss
When in single chip mode: Vss / When writing flash: Vcc
Reset
Oscillation output
Microprocessor GND
Oscillation input
Microprocessor power +3.3V
No use / Connect to Vcc
Alarm interrupt
AC outlet insertion detect signal / Detect when Hi
Asserted when charging current is detected
The two USB charging IC share the charging port
Event signal for TUNING end and RDS setting (U, T, K, G, L, V, S, H, J models)
(A, B models)
SPI communication for Bluetooth
Overcurrent detection flag of USB high-side SW / Overcurrent when Low
SPI communication for Bluetooth
Digital amplifier carrier clock frequency / 0: 768 kHz, 1: 819.2 kHz
Digital amplifier sleep function signal control / SLEEP in Low
Digital amplifier mute function signal control / MUTE in Low
EEPROM/RTC I2C communication
Open drain port
EEPROM/RTC I2C communication
Open drain port
For flash writing (TX)
I For flash writing (RX)
I For flash writing (Clock)
For flash writing BUSY signal output
I2C signal for FM · AM tuner (U, T, K, G, L, V, S, H, J models) / Data
I2C signal for DAB tuner (A, B models) / DAB
I2C signal for FM · AM tuner (U, T, K, G, L, V, S, H, J models) / Clock
I2C signal for DAB tuner (A, B models) / DAB
(U, T, K, G, L, V, S, H, J models)
RESET signal for DAB (A, B models) / RESET in Low
+VP control signal (A, B models) / High when ON
7.2V, +5A control signal / High when ON
Detail of Function