Pioneer 1014TX-K - THX Select A/V Receiver Service Manual page 137

5
Pin Function
No. Pin Name I/O
1 12VTRIGGER O
2 DISP RST O
3 DISP EN O
4 DISP RDY I
5 OSD/DISP DI O
6 DISP DO I
7 OSD/DISP CLK O
−
8 GND
−
9 CNVSS
10 – O
11 – O
−
12 XRESET
−
13 XOUT
−
14 GND
−
15 XIN
−
16 5V
17 NMI I
18 WAKEUP I
19 1394 INT I
20 1W WUP I
21 DECO MUTE I
22 DSP OL O
23 DC PROT O
24 Boad DET O
25 MIC DET O
26 1394 RST O
27 1394 CS O
28 1394 CK O
29 1394 DO O
30 1394 DI I
31 232C RXD O
32 232C TXD I
33 CLK -
34 232C CTS O
35 DSP DI O
36 DSP DO I
37 DSP CLK O
38 DSP RST O
39 DSP SS O
40 BUSY I
41 DSP HREQ O
42 DSP MODE O
43 DSP MUTE O
44 ADMD -
45 DIR DO I
46 DIR CS O
47 LSSN -
48 DIR RST O
49 DIR ERR I
50 XTLO O
5
6
"H" at ON
Display microcomputer reset signal
Communication enabling signal to the display microcomputer
Communication enabling signal from the display microcomputer
Communication data out signal with the OSD-IC/display microcomputer (N ch open drain: pullup)
Communication data in signal with the display microcomputer (N ch open drain)
Communication clock signal with the OSD-IC/display microcomputer
Ground
5.1kΩ pulldown
L" fixed
L" fixed
Reset
Oscillator
Ground
Oscillator
5V power supply
Cannot use it as usual input port
Wakeup
INT for 1394 (Not used) Standby with the circuit.
Wakeup signal at standby (from the display microcomputer)
Boot success detecting port of 1st DSP
Communication enabling signal to the display microcomputer
OSD-IC reset signal L: reset, H: release reset
OSD-IC chip select signal
At data transfer to the OSD-IC: "H"
Reset for 1394 "L" fixed.
Standby for 1394 (Not used) "L" fixed.
CK for 1394
DO for 1394
DI for 1394
For 232C rewriting (data output)
For 232C rewriting (data input)
Not used
For 232C rewriting (communication permission)
Communication data out signal with the DSP1 microcomputer
Communication data in signal with the DSP2 microcomputer
Communication clock signal with the DSP microcomputer
DSP microcomputer reset signal
Slave select signal to DSP microcomputer
MCACC used
Error detection signal of DSP microcomputer
Mode selection of DSP microcomputer (ROM/RAM) H: ROM mode, L: RAM (PPP) mode
DSP Assy mute
NC
Communication data in signal with the DIR/DAC
Communication chip select signal with the DIR/DAC
NC
DIR reset signal
Lock/Unlock signal from DIR
Selection X'tal to DIR
6
7
Pin Function
L: reset, H: release reset (pulldown)
(100kΩ pullup)
(pulldown)
L: reset, H: release reset
VSX-52TX
7
8
Active
A
H
H
B
H
H
H
C
H
H
D
L
L
H
H
E
F
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