Yamaha WXA-50, Service Manual

Page: 31 / 76

Pin
No.
Port Name
Function Name
(P.C.B.)
Related Power Supply
Detail of Function OFF ON
I/O Logic I/O Logic
1 SC8TXD NCPU_SPI_MOSI NCPU_PON O Low O Data Network microprocessor SPI transmitted data (insurance)
2 SC8RXD NCPU_SPI_MISO NCPU_PON I --- I Data Network microprocessor SPI received data
3 SC8SCK NCPU_SPI_SCK NCPU_PON O Low O Clock Network microprocessor SPI communication clock
4 DVDD3 DVDD3 ---
5 DVSS DVSS ---
6 PD0 AC O Low O H act No used
7 PD1 AC O Low O H act No used
8 PD2 AC O Low O H act No used
9 TB0OUT LED_SRC_R AC I --- O PWM Source indicator - Red
10 TB1OUT LED_SRC_G AC I --- O PWM Source indicator - Green
11 TB2OUT LED_SRC_B AC I --- O PWM Source indicator - Blue
12 TB3OUT LED_NET AC I --- O PWM Volume indicator - Red
13 TB4OUT LED_BT AC I --- O PWM Volume indicator - Green
14 INT0 SW_STDBY AC O Low I L act Standby switch
15 INT1 SW_SOURCE AC O Low I L act Source switch
16 INT2 SW_PLAY AC O Low I L act Play/Pause switch
17 PD11 VOL_P_RB AC I --- I Volume B
18 PD12 VOL_M_RA AC I --- I Volume A
19 PD13 AC O Low O Low No used
20 PD14 AC O Low O Low No used
21 PD15 AC O Low O Low No used
22 REGIN1 REGIN1 ---
23 REGOUT1 REGOUT1 ---
24 RVDD3 RVDD3 ---
25 RVSS RVSS ---
26 REGOUT3 REGOUT3 ---
27 PE0 LED_VOL_B AC I --- O PWM Volume indicator - Blue
28 PE1 AC O Low O Low No used
29 SWV SWV ARM debug
30 SWDIO SWDIO ARM debug
31 SWCLK SWCLK ARM debug
32 DVSS DVSS ---
33 X1 X1 ---
34 DVSS DVSS ---
35 X2 X2 ---
36 DVDD3 DVDD3 ---
37 TB5OUT FAN_CTRL AC O Low O D/A Cooling fan speed control (WXA-50)
PF0 AC O Low O Low No used (WXC-50)
38 PF1 FAN_LOCK AC I --- I L act Cooling fan lock detection (WXA-50)
PF1 AC I --- I --- No used (WXC-50)
39 PF2 AC O Low O Low No used
40 PM6 AC O Low O Low No used
41 PM7 AC O Low O Low No used
42 PM8 AC O Low O Low No used
43 PM9 AC O Low O Low No used
44 PM10 AC O Low O Low No used
45 NMI NMI ---
46 XT1 XT1 ---
47 MODE MODE ---
48 XT2 XT2 ---
49 RESET RESET ---
50 PM11 EEP_N_CS AC I --- O L act EEPROM chip select
As EEPROM becomes active when set to Low, input when AC OFF
(set to P.U. at +3.3M)
51 SC6TXD EEP_MOSI AC O Low O Data EEPROM transmitted data
52 SC6RXD EEP_MISO AC O Low I Data EEPROM received data
53 SC6SCK EEP_SCK AC O Low O Clock EEPROM communication clock
54 SC0TXD 232C_DBG_MOSI AC O Low O Data Debug / Flash write
31
WXA-50/WXC-50
WXA
-50/WX
C-50