Pioneer VSX-417-K Service Manual page 79

5
• Pin Function
No. Port
1 P96/ANEX1/SOUT4
2 P95/ANEX0/CLK4
3 P94/DA1/TB4IN
4 P93/DA0/TB3IN
5 P92/TB2IN/SOUT3
6 P91/TB1IN/SIN3
7 P90/TB0IN/CLK3
8 BYTE
9 CNVss
10 P87/XCIN
11 P86/XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 P85/NMI
18 P84/INT2
19 P83/INT1 P85/NMI
20 P82/INT0
21 P81/TA4IN/U
22 P80/TA4OUT/U
23 P77/TA3IN
24 P76/TA3OUT
25 P75/TA2IN/W
26 P74/TA2OUT/W
27 P73/CTS2/RTS2/TA1IN/V
28 P72/CLK2/TA1OUT/V
29 P71/RXD2/SCL/TA0IN/TB5IN XM/SIRIUS RX
30 P70/TXD2/SDA/TA0OUT
31 P67/TXD1
32 P66/RxD1
33 P65/CLK1
34 P64/CTS1/RTS1/CLKS1
35 P63/TXD0
36 P62/RxD0
37 P61/CLK0
38 P60/CTS0/RTS0
39 P57/RDY/CLKOUT
40 P56/ALE
41 P55/HOLD
42 P54/HLDA
43 P53/BCLK
44 P52/RD
45 P51/WRH/BHE
46 P50/WRL/WR
47 P47/CS3
48 P46/CS2
49 P45/CS1
50 P44/CS0
5
6
Pin Name I/O
USDAI O
USCLK O
DISP EN O
DISP RDY I
DISP DI/OSD DT O
DISP DO I
DISP CLK/OSD CLK O
GND I
CNVSS I
I2C CK EEPROM/DVC O
I2C DT EEPROM/DVC I/O
XRESET I
XOUT O
GND I
XIN I
I
5V
NMI I
ACIN(WAKEUP) I
USB TREQ I
1W WUP I
UART SW O
USB HREQ O
USB CTL O
USB XFLAG I
SIRIUS RST O
USB XRST O
USB CS O
DISP RST O
I
XM SIRIUS TX O
TX (SR+) O
RX (SR+) I
CLK O
232C CTS O
DSP DI O
DSP DO I
DSP CLK O
DSP RST O
DSP SS O
BUSY I
DSP HREQ I
DSP MODE O
DSP MUTE O
ADMODE O
DIR DO I
DIR CS O
LSSN O
DIR CDC RST O
DIR ERR I
XTL0 O
VSX-417-K
6
7
Pin Function
Data out to USB
Clock signal from USB
Enable signal to display u-com
Ready signal from display u-com
Data out to display u-com
Data in from display u-com
Clock signal to display u-com
Ground
Terminate to GND with resistor
I2C bus for EEPROM, DVC
I2C bus for EEPROM, DVC
Reset signal input
X'tal output
Ground
X'tal input
Power supply
Pull-up to +5 V with resistor
AC pulse in
Request from TCC760 to main u-com
Wake up signal from display u-com (pull-down)
XM/SIRIUS UART BUS SWITCH control
Request from main u-com to TCC760
From main u-com to USB power switch IC
From USB power switch IC to main u-com
Reset signal to SIRIUS
Reset signal to USB (pull-down)
From main u-com to TCC760
Reset signal to display u-com
Pull-up
SR+ communication
SR+ communication
It is necessary when writing for JIG
For rewriting 232C (Admit communication)
Data output signal for communication with DSP and DIR
Data input signal for communication with DSP
Clock signal for communication with DSP and DIR
Reset signal for DSP
Strobe select signal to DSP
Use it in MCACC
DSP error detect signal
Mode select of DSP (ROM/RAM)
DSP ASSY mute
DSP ASSY
Data input signal for communication with DIR/DAC
Chip select signal for communication with DIR/DAC
DSP ASSY
Reset signal for DIR CODEC
lock/unlock signal
DIR X'tal change
7
8
A
B
C
D
E
F
79
8