Yamaha YSP-4300 Service Manual page 101

Pin
Port Name
No.
34 PO2 DIR_N_RST
PO2/SCLK6/TBAOUT/CTS6n
35 PO3 DSP1_N_CS
PO3/INT9/TBBOUT
36 PO4 AW_MOSI
PO4/TXD7/TBCOUT
37 PO5 AW_MISO
PO5/RXD7/TBDOUT
38 PO6 DSP1_N_RST
PO6/SCLK7/TBEOUT/CTS7n
39 INTA USB_N_INT
PO7/INTA/TBFOUT
40 PP0 DSP1_N_RDY
PP0/CS2n
41 PP1 DSP1_FMT
PP1
42 SPDO USB_MOSI
PP2/BLS0n/SPDO
43 SPDI USB_MISO
PP3/BLS1n/SPDI
44 SPCLK USB_SCK
PP4/WEn/SPCLK
45 SPFSS USB_N_CS
PP5/OEn/SPFSS
46 PP6
PP6/ALEn
47 DVCC3 DVCC3
48 DVSS DVSS
49 PA0
PA0/D0/AD0
50 PA1 AW_FS_N_O
PA1/D1/AD1
51 PA2
PA2/D2/AD2
52 PA3 AW_RX_EN
PA3/D3/AD3
53 PA4 AW_TX_EN
PA4/D4/AD4
54 PA5
PA5/D5/AD5
55 PA6 I2S_SEL
PA6/D6/AD6
56 PA7 USB_N_RST
PA7/D7/AD7
57 PB0 USB_BUSY
PB0/D8/AD8
58 PB1 USB_MCHNG
PB1/D9/AD9
59 PB2 USB_IPLERR
PB2/D10/AD10
60 PB3 USB_SEARCH
PB3/D11/AD11
61 PB4 APL_N_RST
PB4/D12/AD12
62 PB5 APL_N_CS
PB5/D13/AD13
63 PB6 P-GOOD
PB6/D14/AD14
64 PB7
PB7/D15/AD15
I/O
Function
Name
(P.C.B.)
O O
O O
SO SO
[SO]
SI SI
[SI]
O O
IRQ O
I HiZ
O O
SO O
SI SI
O O
O O
– HiZ HiZ
MCU
MCU MCU MCU
– HiZ HiZ
I+ I+
[I+]
– HiZ HiZ
O O
[O]
O O
[O]
– HiZ HiZ
O O
O O
I- HiZ
I HiZ
I- HiZ
I HiZ
O O
O O
O O
– HiZ HiZ
YSP-CU4300/YSP-CU3300/NS-WSW160
Detail of Function
DIR reset output
DSP chip select output
AW asynchronous data output
AW asynchronous data input
DSP reset output
USB HOST interrupt input
DSP READY signal input
DSP mute output
USB/USB_FLASH/Apple certified chip synchronous signal output
USB/USB_FLASH/Apple certified chip synchronous data input
USB/USB_FLASH/Apple certified chip synchronous signal clock output
Chip select for USB HOST
AW GPIO input
AW RX mode of I2S enable
(Simultaneous Low output with AW_TX_EN is inhibited.)
AW TX mode of I2S enable
(Simultaneous Low output with AW_TX_EN is inhibited.)
Output to select HDMI/DIR path
P.U to +3.3D
Reset output for USB host
BUSY input from USB host
Input to detect change of USB host music number
USB host initial program download error
Input to detect USB host search condition
Reset output for Apple certified chip
Chip select for Apple certified chip
P-GOOD
101