Yamaha MCR-B043 Service Manual page 45

Pin Function Name
Port Name
No. (P.C.B.)
41 P55/HOLD /EPM
42 P54/HLDA 5D_PON
43 P53/BCLK 3D_PON
44 P52/RD USB1_EN
45 P51/WRH/BHE DIAG_OUT
46 P50/WRL/WR /CE
47 P47/PWM1/TXD7/ CBT_MOSI
SDA7/CS3
48 P46/PWM0/RXD7/ CBT_MISO
SCL7/CS2
49 P45/CLK7/CS1 CBT_N_RST
50 P44/CTS7/RTS7/CS0 CBT_ON
51 P43/A19 DSP_FLAT
52 P42/A18 5D_PSTBY
53 P41/A17 CD_HOME
54 P40/A16 CD_EJECT
55 P37/A15 CD_INSERT
56 P36/A14
57 P35/A13 HP_DET
58 P34/A12 HP_N_MUTE
59 P33/A11 AMP_PRT
60 P32/A10 CD_N_SLMUTE
61 P31/A9 USB1_CTL1
62 Vcc2 VCC
63 P30/A8
64 Vss VSS
65 P27/AN27/A7 USB1_CTL2
66 P26//AN26/A6
67 P25/INT7/AN25/A5 INT_KEY0
68 P24/INT6/AN24/A4 CD_SW1
69 P23/AN23/A3 USB1_CTL3
70 P22/AN22/A2
71 P21/AN21/A1
72 P20/AN20/A0 ILIM_SEL
73 P17/INT5/IDU/D15
74 P16/INT4/IDW/D14 P_SW
75 P15/INT3/IDV/D13 REMOTE
76 P14/D12 3.3S_N_PON
77 P13/TXD6/SDA6/D11
78 P12/RXD6/SCL6/D10
79 P11/CLK6/D9
80 P10/CTS6/RTS6/D8 BT_N_RST
81 P07/AN07/D7 CD_SW1 (Reserve)
I/O
MCU I
O +5D control signal / High when ON / Standby: 0, P-ON: 1
When USB is detected, turn to HIGH (including standby mode)
O +3.3D control signal / High when ON
O USB VBUS ON/OFF control signal / High when Standby/ON
O Self-diagnostic function 5-1 output result port / 0: NG, 1: OK
MCU I
UART UART communication for CUBIT
UART UART communication for CUBIT
O RESET signal for CUBIT
O CUBIT ON control signal
O EQ controller / 0: Normal, 1: EQ Flat
O To supply voltage to USB charge IC during eco-mode
This LDO won't be use to charge / LDO is turned OFF when need charging
Standby: 1, P-ON: 0 / When USB is detected, turn to LOW
I
O FWD terminal
O REV terminal
I No use
[I] Headphone insert detect signal / Detect when High
O Headphone mute control signal / Low when MUTE
I D-AMP error detection
O CD mute control signal / Low when MUTE
O USB charging mode selector / DCP auto mode
Eco standby: 0, Standby: 0, POWER ON: 1
MCU Microprocessor power supply +3.3M
MCU Microprocessor ground
O USB charging mode selector / DCP auto mode
[IRQ] KEY0 interrupt
Activated when EJECT key is pressed during clock OFF standby mode
IRQ
O USB charging mode selector / DCP auto mode
I No use
No use
O No use
IRQ Standby state ON/OFF / 0: No pressing, 1: Pressing
I IR light receiving unit signal
O +3.3S control signal / Low when ON
I No use
[O] Bluetooth module reset signal / Low when reset
O CD insertion detect (Reserve)
MCR-B043/MCR-B043D/NS-BP83
Detail of Function
45