Yamaha YSP-1600 Service Manual page 53

Pin
Port Name
No.
1 AN14
PK6/AN14
2 AN15
PK7/AN15
3 AVSS
4 VREFH
5 RESETn
6 MODE
7 PL0
PL0/SDA0/TB0OUT
8 PL1
PL1/SCL0/TB1OUT
9 SCK0
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 PL7
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 TXD3
PM5/TXD3
22 RXD3
PM6/RXD3
23 PM7
PM7/INT3
24 TXD4
PN0/TXD4
25 RXD4
PN1/RXD4
26 PN2
PN2/SCLK4/TB2IN0/CTS4n
27 PN3
PN3/INT4/TB2IN1/RMIN0
28 TXD5
PN4/TXD5
29 RXD5
PN5/RXD5
30 PN6
PN6/SCLK5/TBFIN0/CTS5n
31 PN7
PN7/INT8/TBFIN1/RMIN1
32 PO0
PO0/TXD6/TB8OUT
33 PO1
PO1/RXD6/TB9OUT
I/O
Function Name
(P.C.B.)
INS_MODE AD AD
HiZ HiZ
AVSS [MCU]
VREFH
N_RESET
MODE
LED_DATA O O
LED_LCK SO O
LED_CLK SO O
HDMI_N_INTR IRQ HiZ
[IRQ]
LED_ENABLE SO O
O O
O O
E2P_N_CS O O
DVSS [MCU]
E2P_SCK SO SO
E2P_MOSI SO SO
E2P_MISO SI SI
VBUS_PON O O
VBUS_DRV I HiZ
NCPU_RXD SO SO
NCPU_TXD SI SI
NCPU_PHOLD O O
UART_TXD SO SO
UART_RXD SI SI
NCPU_SPI_N_CS O O
NTWK_PON O O
NCPU_SPI_MOSI SO O
NCPU_SPI_MISO SI HiZ
NCPU_SPI_SCK SO O
NCPU_N_RST O O
NCPU_MUTE1 I I
NCPU_MUTE0 I I
Detail of Function
Inspection mode discrimination
(MAIN: INPUT: Normal mode)
MCU
MCU uCOM reset input / P/U 4.7 k-ohms in P.C.B. INPUT
Processing within microprocessor: Usually pull-up
MCU Connected to GND / Processing within microprocessor: Usually pull-up
Serial/parallel data input
Serial/parallel clock (400 kHz)
Serial/parallel latch clock
HDMI RX interrupt input
P/U 10 k-ohms in P.C.B. INPUT (HDMI side)
Serial/parallel output enable
P/U in P.C.B. LED
E2P ROM chip select output
P/U to S3.3_E2P 10 k-ohms in P.C.B. INPUT
E2P ROM synchronous clock output
E2P ROM synchronous data output
E2P ROM synchronous data input
P/U 10 k-ohms to S3.3_E2P in P.C.B. INPUT
USB terminal ON/OFF signal
UART mode data output
UART mode data input
UART/232C (asynchronous communication) mode data output
UART/232C (asynchronous communication) mode data input
NETWORK chip select output
P/U 10 k-ohms in NETWORK module
Power supply IC for NETWORK ON signal
NETWORK synchronous data output
P/U 10 k-ohms in NETWORK module
NETWORK synchronous data input
P/U 10 k-ohms in NETWORK module
NETWORK system clock
NETWORK reset output
NETWORK mute 1
NETWORK mute 0
YSP-1600
53