Yamaha CRX-140 Service Manual page 52

CRX-040/CRX-140/NS-BP80
Pin
Port Name
No.
P70/TXD2/SDA2/
30 DAB_SDA
TA0out
31 P67/TXD1/SDA1 TXD1
32 P66/RXD1/SCL1 RXD1
33 P65/CLK1 CLK1
P64/CTS1/RTS1/
34 BUSY
CTS0/CLKS1
35 P63/TXD0/SDA0 ASEL_SDA
36 P62/RXD0/SCL0 ASEL_SCL
37 P61/CLK0 USB_DET_OFF
38 P60/CTS0/RTS0 nAMP_MUTE
(reserved)
39 P57/RDY/CLKout
CLKOUT
40 P56/ALE PRY_CTRL
41 P55/HOLD nDEB_EMP
RDS_RDY
42 P54/HLDA
P53/BCLK nRDS_RST
43
P52/RD nDAB_RST
44
P51/WRH/BHE nICP_RST
45
46 P50/WRL/WR nDEB_CE
47 P47/CS3/TXD7/SDA7 CD_MOSI
48 P46/CS2/RXD7/SCL7 CD_MISO
49 P45/CS1/CLK7 CD_SCK
50 P44/CS0/CTS7/RTS7 CD_CS
51 P43/A19 (reserved)
52 P42/A18 nCD_RST
53 P41/A17 CD_SPEED
54 P40/A16 USB_DET
55 P37/A15 nUSB_PON
56 P36/A14 nUSB_FLG
57 P35/A13 nDRV_MUTE
58 P34/A12 CD_LOAD1
59 P33/A11 CD_LOAD2
60 P32/A10 CD_LSW1
61 P31/A9 CD_LSW0
62 Vcc2 Vcc
63 P30/A8 (reserved)
64 Vss Vss
65 P27/A7/AN27 HP_DET
66 P26/A6/AN26 nHP_MUTE
52
I/O
Function
Name
(P.C.B.)
I2C I I
O
O
O
O
I2C I I
I2C I I
O O O
O O O
O O O
O O O
I
I I I
O O O
O O O
O O O
O O O
O O O
O O O
O O O
I
SPI SPI O
SPI SPI I
SPI SPI O
O O O
O O O
O O O
I O O
I I I
x I I
I I I
O O O
O O O
O O O
I I I
I I I
MCU MCU MCU
O O O
MCU MCU MCU
I I I
O O O
MCU
MCU
MCU
MCU
MUTE control signal of D-AMP
0: D-AMP MUTE
1: D-AMP MUTE cancelled
ON/OFF control of power relay (main transformer)
0: Power relay off
1: Power relay on
[MCU]
[MCU]
Forced monoploid speed control of CD, reserve / Set when MATSUSHITA
resetting is cancelled; Hi-Z when in normal operation mode, Low when x1 fixed
Signal output from MN1
Enable control of USB high side SW / Control is time-shared by MN1 and SYS_
uCOM
0: Enable
1: Disable
Current limit detection flag of USB high side SW
0: Current limit detected
1: Operating in normal mode
ON/OFF control of CD motor Driver output
0: All Drive Disable
1: All Drive Enable
Selection of CD Loading operation
Detection of inserted HP
0: HP not inserted
1: HP inserted
HP mute control signal
0: HP mute
1: PH output
Detail of Function
U, T, K, A, B, L, V, J models
U, T, K, A, B, L, V, J models
U, T, K, A, G, L, V, J models
B model
G model
G model
B model
CRX-040
CRX-140