Pioneer VSX-AX4AVi-S Service Manual page 244

1
Pin Function
A
No. Mark
1 VREF
2 AVcc
3 P97/ADTRG/SIN4
4 P96/ANEX1/SOUT4
5 P95/ANEX0/CLK4
6 P94/DA1/TB4IN
7 P93/DA0/TB3IN
8 P92/TB2IN/SOUT3
9 P91/TB1IN/SIN3
10 P90/TB0IN/CLK3
B
11 P141
12 P140
13 BYTE
14 CNVss
15 P87/XCIN
16 P86/XCOUT
17 RESET
18 XOUT
19 Vss
20 XIN
21 Vcc1
C
22 P85/NMI
23 P84/INT2
24 P83/INT1
25 P82/INT0
26 P81/TA4IN/U
27 P80/TA4OUT/U
28 P77/TA3IN
29 P76/TA3OUT
30 P75/TA2IN/W
31 P74/TA2OUT/W
D
32 P73/CTS2/RTS2/TA1IN/V
33 P72/CLK2/TA1OUT/V
34 P71/RxD2/SCL2/TA0IN/TB5IN
35 P70/TXD2/SDA2/TA0OUT
36 P67/TXD1/SDA1
37 Vcc1
38 P66/RxD1/SCL1
39 Vss
40 P65/CLK1
41 P64/CTS1/RTS1/CTS0/CLKS1 232C CTS
42 P63/TXD0/SDA0
E
43 P62/RxD0/SCL0
44 P61/CLK0
45 P60/CTS0/RTS0
46 P137
47 P136
48 P135
49 P134
50 P57/RDY/CLKOUT
F
244
1
2
Pin Name I/O
Vref(5V) - Reference voltage
Avcc(5V) - Power supply (5V)
HDMI/DSP DO I Data input for HDMI/DSP microcomputer
HDMI/DSP DI O/L Data output for HDMI/DSP microcomputer
HDMI/DSP CLK O/L Clock output for HDMI/DSP microcomputer
HDMI RDY I Ready input for HDMI microcomputer
HDMI RST O/L Reset output for HDMI microcomputer
1394 DI O/L Communication with 1394 HOST controller
1394 DO I Communication with 1395 HOST controller
1394 CLK O/L Communication with 1396 HOST controller
SB MUTE O/L Mute for SB ch (L:MUTE)
1394 RST O/L Communication with 1396 HOST controller
L:16 bit width External flash bus width setting L= 16 bit, H= 8 bit.
Vss(exp. mode) Shift from single-chip mode to memory expanded mode.
Communication with microcomputer Request input to the main
DSP RDY I
DSP RST O/L Communication with DSP controller
RESET I Reset input from the main microcomputer
Xout O Connect a ceramic resonator (15.7MHz).
Vss(GND) - Ground
Xin I Connect a ceramic resonator
Vcc1(5V) - Power supply(5V)
NMI I -
WAKEUP (AC PULSE)
( I ) AC pulse input
1394 INT(RDY) I Communication with 1394 HOST controller
1W WAKEUP I Communication with display microcomputer
RDS CK/XM LOW SPEED
I (RDS model) CLOCK IN/(XM) DATA IN
RDS DT/LINK ACTIVE(XM)
I (RDS model) DATA IN/(XM) LINK signal
OL DET I OVERLOAD detection (L: abnormality)
POFFINFO O/L Notice of power off to the DSP controller (Pull off an outlet)
DISP REQ O/L Communication with display microcomputer
DISP RDY I Communication with display microcomputer
DISP RST O/H Communication with display microcomputer
DISP CLK O/L Communication with display microcomputer
DISP DO I Communication with display microcomputer
DISP DI O/L Communication with display microcomputer
232C TxD O/L RS-232C
Vcc1(5V) - Power supply (5V)
232C RxD I RS-232C
Vss(GND) - Ground
JIG CLK RS-232C
O/L RS-232C
Tx (SR+/iPOD/XM) O/L Communication with SR+/iPod/XM
Rx (SR+/iPOD/XM) I Communication with SR+/iPod/XM
LOW COMSUMPTION
O/L AMUTE power ON/OFF(ON: H)
S-DET I S-VIDEO detection (H)
WAKE_UPB(XM) I For XMDTcommunication
XM/iPod SELECT O/L POD/XM path switch (iPod: L,XM: H)
EXP ST O/L Communication with expansion IC
EXP OE O/L Communication with expansion IC
Vcc(5V) I Vcc(5V)
VSX-AX4AVi-S
2
3
Pin Function
3
4
4