Yamaha YSP-4300 Service Manual page 100

YSP-CU4300/YSP-CU3300/NS-WSW160
Pin
Port Name
No.
1 PK6
PK6/AN14
2 PK7
PK7/AN15
3 AVSS
4 VREFH
5 RESETn
6 MODE
7 SDA0 / PL0/
SDA0/TB0OUT
8 SCL0 / PL1/
SCL0/TB1OUT
9 PL2
PL2/SCK0/TB2OUT
10 INT0
PL3/INT0/TB3OUT
11 PL4
PL4/TXD1/TB4OUT
12 PL5
PL5/RXD1/TB5OUT
13 PL6
PL6/SCLK1/TB6OUT/CTS1n
14 INT1
PL7/INT1/TB7OUT
15 DVSS
16 SCLK2
PM0/SCLK2/TB1IN0/CTS2n
17 TXD2
PM1/TXD2/TB1IN1
18 RXD2
PM2/RXD2/ALARMn
19 PM3
PM3/INT2
20 PM4
PM4/SCLK3/CTS3n
21 PM5
PM5/TXD3
22 PM6
PM6/RXD3
23 INT3
PM7/INT3
24 TXD4
PN0/TXD4
25 RXD4
PN1/RXD4
26 PN2
PN2/SCLK4/TB2IN0/CTS4n
27 INT4
PN3/INT4/TB2IN1/RMIN0
28 TXD5
PN4/TXD5
29 RXD5
PN5/RXD5
30 SCLK5
PN6/SCLK5/TBFIN0/CTS5n
31 INT8
PN7/INT8/TBFIN1/RMIN1
32 PO0
PO0/TXD6/TB8OUT
33 PO1
PO1/RXD6/TB9OUT
100
I/O
Function
Name
(P.C.B.)
DIR_SDO2 I I
TI_WARNG I+ HiZ
AVSS MCU MCU
VREFH
N_RESET
MODE
PWM_SDA SIO HiZ
PWM_SCL SO HiZ
PWM_N_PDN O O
TUNER_GPIO IRQ HiZ
PWM_N_RST O O
PWM_N_MUTE O O
D4_N_WARNG I+ HiZ
AC_PON_DET IRQ IRQ
DVSS MCU MCU
D4_SCK SO O
D4_MOSI SO O
D4_MISO SI HiZ
D4_N_CS O O
D4_N_RST O O
D4_N_DISABLE O O
D4_PON O O
FLASH_RXD IRQ IRQ
FLASH_TXD SO SO
FLASH_RXD SI SI
232C_CTS I I
DIR_N_INT IRQ IRQ
DSP_MOSI SO O
DSP_MISO SI HiZ
DSP_SCK SO O
DSP1_N_INT IRQ IRQ
D4_N_IRQ I HiZ
DIR_N_CS O O
Detail of Function
CDDA writing data input
DAMP error detect input
P.U to +3.3D
MCU
MCU
MCU uCOM RESET input / Processed in microprocessor, usually pull-up
MCU Connected to GND / Processed in microprocessor, usually pull-up
PWM_MOD I2C data input/output
P.U to +3.3D
PWM_MOD I2C data clock output
P.U to +3.3D
PWM_MOD power down output
TUNER GPIO input (INT pulse 1uS:RDS/SEEK detect)
P.U to +3.3D
PWM_MOD reset output
P.U to +3.3D
PWM_MOD mute output
P.U to +3.3D
D4 protection / Processed in microprocessor, usually pull-up
P.U to +3.3D
AC Interrupt input to detect connection
MCU
D4 synchronous clock
D4 synchronous data output
D4 synchronous data input
D4 chip select output
D4 reset output
D4 PWM stop
D4 power ON/OFF
FLASH_UART/232C (asynchronous communication) mode data input
(C1 interrupt) / Parallel input
FLASH_UART/232C (asynchronous communication) mode data output
FLASH_UART/232C (asynchronous communication) mode data input
Parallel input
232C transmission enable input
DIR interrupt input
DSP/DIR synchronous data output
DSP/DIR synchronous data input
DSP/DIR synchronous clock
DSP1 interrupt input
D4 IRQ input
DIR chip select output