Pioneer DEH-P80RS, Service Manual

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DEH-P880PRS/XN/UC
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Pin Functions(PEG178A : UC and ES model, PEG176A : EW5 model)
Pin No. Pin Name I/O Function and Operation
1 TUNPCE1 O TUNER : Chip enable output (PLL)
2 TUNPCE2 O TUNER : Chip enable output (EEPROM)
3 DSPOUT O DSP, E.VOL : Data output
4 DSPIN I DSP : Data input
5 DSPCK O DSP, E.VOL : Clock output
6 BYTE I External data bus width change input
7 CNVSS I Processor mode change input
8 IPPW O IP-BUS : Driver power supply control output
9 ASENBO O IP-BUS : Slave ACC sense output
10
reset
I Reset input
11 XOUT O Crystal oscillating element connection output
12 VSS GND
13 XIN I Crystal oscillating element connection input
14 VCC Power supply
15
nmi
Not used
16
rck
I RDS : Clock input (EW)
17
ldet
I RDS : PLL Lock detect input (EW)
18 AMPPW O Power amplifier power supply control output
19 RX2 I IP-BUS : Data input 2
20 FCKSEL O Switch output of VCO oscillation frequency
21 EVOLCS O E.VOL : Chip select output
22 PEE O BEEP sound output
23 SYSPW O System power control output
24 DSPPW O DSP : Power control output
25 DALMON O For consumption low-current output
26 MUTE O Mute output
27 RX I IP-BUS : Data input
28 TX O IP-BUS : Data output
29 BSO O PBUS : Serial data output
30 BSI I PBUS : Serial data input
31 BSCK O PBUS : Clock output
32 KEYD I Wired remote control key input (UC, EW)
33 DPDT O GRILLE : Data output
34 KYDT I GRILLE : Data input
35 MCKCONT Not used
36 MCKRQ I Master clock request input
37 PCL O Output for clock adjustment
38 NC Not used
39
rds%&k
I RDS : 57 kHz count pulse input (EW)
40 DSP_RAMCLR O DSP : RAM clear output
41 INIT_RESET O DSP : System reset output
42 CK_RST O DSP : Clock reset output
43 DSPS_RST O DSP : System reset output
44 CKM[2] O DSP : Clock mode select output
45 AMTPW Not used
46 DSPRQ O DSP : Interface request output
47 DSPRDY I DSP : Data write ready input
48
bsrq
I PBUS : Communication request output
49 BRST O PBUS : Reset output
50 BRXEN I/O PBUS : Communication input/output
51 LRCKOK I DSP : Clock stability information input
52 JSNSON1 O "H" output at Jack sense mode (UC, ES)
53 CDRESET O CD : Microcomputer reset output
54 DIM_WH O Key illumination dimmer output (White)
55 DIM_BL O Key illumination dimmer output (Blue) (UC, ES)
56 ILMPW O Illumination output
57 SWVDD O GRILLE : Chip enable output
58 OELPW O OEL : Power supply output
59 MODEL I Model select input (UC, ES)
60 VCC Power supply
61 DSPMOD I DSP : STD/NW setting input
62 VSS GND