Onkyo TX-SR502E Service Manual page 68

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MICROPROCESSOR TERMINAL DESCRIPTIONS-1
Q7008:MPD784225GC-XXX-8BT(MAIN MICROPROCESSOR)
No. Pin name
1 PROTECT
2 VOLH
3 BAND
4 AVSS
5 THERMPRO
6 NU
7 AVREF1
8 DSPSDI
9 DSPSDO
10 DSPCLK
11 NU
12 NU
13 NU
14 PUREPOW
15 MCRDY
16 MCSDI
17 MCSDO
TE
L 13942296513
18 MCCLK
19 ~MCRST
20 HPMUT
21 HPIN
22 SPBRL
23 SEC1H
24 SPACSRL
25 SPAFRL
26 POWRL
27 VCTRLA
28 VCTRLB
29 ~VMUT2
30 ~VMUT1
31 CMPRL
32 PLLSDI
33 VSS1
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34 AMUT
35 PLLSTB
36 PLLSDO
.
37 PLLCLK
38 TUMUT
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I/O Description
I Current detection and DC voltage detection
input terminal.
I Thermal detection and power amplifier
output level detection input terminal.
I Input terminal for destination setup.
I Ground terminal.
I Thermal detection input terminal.
O Not used.
I Ground terminal for A/D converter.
Serial data input terminal from DSP and
I
DIR/CODEC.
O Serial data output terminal to DSP and
DIR/CODEC.
O Serial clock output terminal to DSP and
DIR/CODEC.
Not used.
O
O Not used.
O Not used.
O Power supply control terminal of video
circuit for Pure audio mode.
I Data ready detection input terminal from
the sub microprocessor.
I Data input terminal from the sub
microprocessor.
O Data output terminal to the sub
microprocessor.
O Serial clock output terminal to the sub
microprocessor.
O Reset signal output terminal to the sub
microprocessor.
O Muting control output terminal for
headphone amplifier. Not used.
I Input terminal to detect the connection of
headphone.
O Speaker relay control output terminal for front-B.
O Control output terminal for power supply
voltage of power amplifier.
O Speaker relay control output terminal for
center and surround channels.
Speaker relay control output terminal
O
for front-A channels.
O Power source relay control output terminal.
O Control signal-A output terminal for the
video selector switch.
O Control signal-B output terminal for the
video selector switch.
Muting control-2 output terminal for the
O
video section.
O Muting control-1 output terminal for the
video section.
O Control output terminal of component
video selector.
I PL serial data input terminal.
I Ground terminal.
Audio muting control output terminal.
O
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Strobe signal output terminal to PLL IC.
O
O Serial data output terminal to PLL IC.
i
O Serial clock output terminal to PLL IC.
O Muting control output terminal for the
tuner section.
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No. Pin name
39 ~SD
40 ~STEREO
41 NU
42 NU
43 SELMUT
44 SELCLK
45 SELSDO
46 ~DIRRST
47 ~DIRCS
48 ~DSPFCS
49 ~DSPRST
50 ~DSPCS
51 NU
52 NU
53 NU
54 NU
55 NU
56 NU
Q Q
57 NU
3 6 7 1 3 1 5
58 NU
59 NU
60 RESET
61 ~POFF
62 DIRINT1
63 DIRINT0
64 ~FINTREQ
65 ~INTREQ
66 ~RDSCLK
67 VSS0
68 VDD0
69 X2
70 X1
71 TEST/VPP
72 XT2
73 XT1
74 VDD0
75 AVDD
76 RDSDATA
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77 RDSSIG
.
78 INIT1
79 INIT2
80 INIT3
TX-SR502/E/8250/HT-R520
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I/O Description
I Broadcast detection input terminal more
than a muting level.
I FM stereo broadcast detection input terminal.
--- No used.
--- No used.
O Muting control output terminal to selector/
volume/ tone IC BD3817.
O Serial clock output terminal to selector/
volume/ tone IC BD3817.
O Serial data output terminal to selector/
volume/ tone IC BD3817.
O Reset output terminal for DIR/CODEC.
O Chip select output terminal for DIR/
CODEC.
O Chip select output terminal for DSP IC.
O Reset output terminal for DSP IC.
O Chip select output terminal for DSP IC.
--- Not used.
--- Not used.
--- Not used.
--- Not used.
--- Not used.
--- Not used.
--- Not used.
0 5 8 2 9 9 4 2 8
--- Not used.
Not used.
---
I System reset input terminal.
O Power failure detection input terminal.
I Interrupt input terminal from DIR/
CODEC.
O Interrupt input terminal from DIR/
CODEC.
I Interrupt request input terminal from
DSP IC.
I Interrupt request input terminal from
DSP IC.
I RDS clock input terminal (European model
only)
I Ground terminal.
I Power supply terminal +5V.
O Connect the ceramic oscillator 12.5MHz.
I Connect the ceramic oscillator 12.5MHz.
I Test terminal. Not used.
O Not used.
I Not used.
I Power supply terminal +5V.
I Power supply terminal for A/D converter +5V.
m
I Data input terminal of RDS broadcast
(European model only)
I Input terminal to check the signal of RDS
broadcast (European model only)
I Input terminal-1 for destination setup.
I Input terminal-2 for destination setup.
I Input terminal-3 for destination setup.
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