Onkyo TX-SR503 Service Manual page 86

MICROPROCESSOR TERMINAL DESCRIPTIONS-1
Q701: M30622MGP-236FPU0
Pin No. Pin name I/O
1 FLDSDO O
2 FLDCLK O
3 FLDCS O
4 ~FLDRST O
5 FSWSDO O
6 FSWSTB O
7 FSWCLK O
8
BYTE ---
9 CNVSS ---
10 COMPA O
11 COMPB O
12 ~RESET I
13 XOUT ---
14 VSS ---
15 XIN ---
16 VCC1 ---
17 ~NMI I
18 --- I
19 ~REMIN I
20 POFF I
21 DIRINT1 I
22 DIRINT0 I
23 ~DIRCS O
24 ~DIRRST O
25 ~DSPFCS O
26 ~DSPCS O
27 VMUTMON O
28 VMUTV1 O
29 VCTRLA O
30 VCTRLB O
31 FTXD O
32 FRXD I
33 FCLK O
34 FBUSY O
35 DIGSDO O
36 DIGSDI I
37 DIGCLK O
38 DSPBUSY I
39 ~DSPINT I
40 ~DSPFINT I
41 ~FEPM O
42 ~DSPRST O
43 VOLSTB O
44 VOLCLK O
45 VOLDAT O
46 ~FCE I
47 --- O
48 --- O
49 AMUT O
50 SPRLB O
Act. Description
Output serial data for control of FL driver IC.
H
Output serial clock for control of FL driver IC.
CLK
Output chip select for FL driver IC.
H
Output reset signal for FL driver IC.
L
Output serial data for control of function switch (NJU7311).
H
Output strobe for control of function switch (NJU7311).
H
Output serial clock for control of function switch (NJU7311).
H
Select of external bus width. Connect to ground.
---
Select of processor mode.
---
Output control signal for relay of component video selector.
L
Output control signal for relay of component video selector.
L
Input signal for system reset.
L
Connected to oscillator.
---
Ground.
---
Connected to oscillator.
---
Power supply.
---
Not used.
L
Not used.
L
Input signal from remote sensor.
L
Input signal of power failure detection.
H
Not used.
H
Input signal of interrupt request detection of DSP C.
H
Output signal for chip select of DIR/CODEC.
L
Output signal for reset of DIR/CODEC.
L
Output signal for chip select of DSP A/B.
L
Output signal for chip select of DSP C.
L
Output control signal for video mute of monitor out.
L
Output control signal for video mute of video-1.
L
Output control signal of video switch IC.
H
Output control signal of video switch IC.
H
For writing of flash microprocessor.
H
For writing of flash microprocessor.
H
For writing of flash microprocessor.
CLK
Output reset signal for DSPIC.
H
Output signal for serial communications with DIR/ CODEC/DSP IC.
H
Input signal for serial communications with DIR/ CODEC/DSP IC.
H
Output clock for serial communications with DIR/ CODEC/DSP IC.
CLK
Input signal of detect busy signal of DSP C.
H
Input signal of detect interrupt request signal of DSP C.
L
Input signal of detect interrupt request signal of DSP AB.
L
For writing of flash microprocessor.
H
Output reset signal for DSP IC.
L
Output strobe for control of volume IC.
H
Output serial clock for control of volume IC.
CLK
Output serial data for control of volume IC.
H
For writing of flash microprocessor.
H
Not used.
H
Not used.
H
Output signal of audio mute.
H
Output control signal for relay drive of speakers-B.
H
TX-SR503/503E/8350