Yamaha R-S300 Service Manual page 35
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Also See for R-S300:
- Owner's manual (322 pages) ,
- Manuel d'utilisation (8 pages) ,
- Owner's manual (78 pages)
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Pin
Function Name
Port Name
No.
（P.C.B.）
1
P9_6/ANEX1/SOUT4 NC
2
P9_5/ANEX0/CLK4
TRIG
3
P9_4/DA1/TB4IN
MPLED
4
P9_3/DA0/TB3IN
FL_N_RST
5
P9_2/TB2IN/SOUT3
FL_MOSI
6
P9_1/TB1IN/SIN3
FL_N_CE
7
P9_0/TB0IN/CLK3
FL_SCK
8
BYTE
BYTE
9
CNVss
CNVSS
10
P8_7/XCIN
NC
11
P8_6/XCOUT
ZPLED
12
RESET
N_RST
13
Xout
XOUT
14
Vss
VSS
15
Xin
XIN
16
Vcc1
VCC
P8_5/NMI/SD
17
NMI
* Nch Open Drain
18
P8_4/INT2/ZP
KEY1_N_INT
19
P8_3/INT1
MPSW
20
P8_2/INT0
REM
P8_1/TA4IN/U/CTS5/
21
NC
RTS5
P8_0/TA4OUT/U//
22
SIRI_MISO
RXD5/SCL5
23
P7_7/TA3IN/CLK5
IPD_N_APDET
P7_6/TA3OUT/TXD5/
24
SIRI_MOSI
SDA5
25
P7_5/TA2IN/W
DOCK_PON
26
P7_4/TA2OUT/W
UAW_PON
P7_3/CTS2/RTS2/
27
SIRI_PON
TA1IN/V
P7_2/CLK2/TA1OUT/
28
IPD_N_VON
V
P7_1/RXD2/SCL2/
29
TA0IN/TB5IN
IPD_MISO
* Nch Open Drain
P7_0/TXD2/SDA2/
30
TA0OUT
IPD_MOSI
* Nch Open Drain
31
P6_7/TXD1/SDA1
TXDF
32
P6_6/RXD1/SCL1
RXDF
33
P6_5/CLK1
CLKF
P6_4/CTS1/RTS1/
34
BSY
CTS0/CLKS1
35
P6_3/TXD0/SDA0
NC
36
P6_2/RXD0/SCL0
NC
37
P6_1/CLK0
NC
38
P6_0/CTS0/RTS0
N_Z2MT
39
P5_7/RDY/CLKOUT
EVOL_SCK
40
P5_6/ALE
EVOL_MOSI
41
P5_5/HOLD
N_EPM
42
P5_4/HLDA
TU_N_ST
43
P5_3/BCLK
TU_N_TUNED
44
P5_2/RD
RDS_N_RST
45
P5_1/WRH/BHE
RDS_SCK
46
P5_0/WRL/WR
N_CE
P4_7/TXD7/SDA7/
47
TU_SDA
/CS3
P4_6/RXD7/SCL7/
48
TU_SCL
CS2
49
P4_5/CLK7/CS1
RDS_MISO
P4_4/CTS7/RTS7/
50
RDS_RDY
CS0
51
P4_3/A19
ISB
52
P4_2/A18
ISA
53
P4_1/A17
LINE3_LED
54
P4_0/A16
LINE2_LED
55
P3_7/A15
LINE1_LED
56
P3_6/A14
CD_LED
57
P3_5/A13
TUNER_LED
58
P3_4/A12
DOCK_LED
59
P3_3/A11
PHONO_LED
60
P3_2/A10
VOL_RB
61
P3_1/A9
VOL_RA
I/O
O
O
O
O
O
O
CONTROL +12V control
O
O
O
LED control for MAIN POWER ON display
O
O
O
FL initial clear control
SO
O
O
FL communication serial data
O
O
O
FL communication chip select
SO
O
O
FL communication serial clock
MCU
MCU
MCU Connect to Vss when in the single chip mode (External data bus width change: 16 bit)
Low: processor mode select: single chip mode
MCU
MCU
MCU
Hi: To the FLASH included boot mode
O
O
O
O
O
O
MCU
MCU
MCU Reset input
MCU
MCU
MCU Main clock 20MHz output
MCU
MCU
MCU
MCU
MCU
MCU Main clock 20MHz input
MCU
MCU
MCU
MCU
MCU
MCU Unused, Pull Up
Tuner control SW/ZONE2 POWER SW detection interrupt input
IRQ
IRQ
I
With this interrupt, the KEY 1 voltage is read
I
IRQ
I
MAIN POWER SW detection interrupt input
IRQ
IRQ
I
Remote control pulse input detection interrupt input
O
O
O
Free terminal
SI
O
O
SIRIUS UART communication
I
I
I
iPod accessory power control
SO
O
O
SIRIUS UART communication
DOCK power supply ON/OFF control
O
O
O
Hi = ON, Low = Off
UAW power supply ON/OFF control
O
O
O
Hi = ON, Low = Off
SIRIUS power supply ON/OFF control
O
O
O
Hi = ON, Low = Off
O
O
O
iPod UART communication
SI
IRQ
I
iPod communication detection interrupt input when in the standby mode
SO
O
O
iPod UART communication
For easy emulation
SO
SO
[MCU]
For writing FLASH (Rx)
For easy emulation
SI
SI
[MCU]
For writing FLASH (Tx)
For easy emulation
SO
SO
[MCU]
For writing FLASH (Clock)
For easy emulation
O
O
[MCU]
BUSY signal output for writing FLASH
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Electronic VOLUME control serial clock
O
O
O
Electronic VOLUME control serial data
For writing FLASH (Low)
I
–
–
Pull it down as it may fall in the Hiz state while the emulator is working
I
I
I
TUNER STEREO detection input
I
I
I
TUNER TUNED input
O
O
O
RDS preset control
O
O
O
Serial clock for RDS communication
I
–
–
For writing FLASH (Hi)
SIO
O
O
TUNER communication I2C bus data
SO
O
O
TUNER communication I2C bus clock
I
I
I
Serial data for RDS communication
I
I
I
RDS READY input terminal
I
I
I
Encoder phase detection input/output for Input selector
I
I
I
Encoder phase detection input/output for Input selector
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
Encoder input for VOLUME UP/DOWN
I
I
I
Encoder input for VOLUME UP/DOWN
Detail of Function
R-S300
I2C fs = 100k/400k
I2C fs = 100k/400k
35
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