Pioneer DEH-2800 Service Manual - Page 64
Pin Functions PE5505A, testin, reset, dspok, adena, xwait
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1 2 3 4 - Pin Functions (PE5505A) Pin No. Pin Name I/O 1 AVREF A 2 AVSS 3 testin I 4 CLAMP 5 EVDD 6 FMODE 7 FLRQ 8 IC/FLMD0 9 VDD 10 REGC 11 VSS 12 X1 I B 13 X2 14 reset I 15 XT1 I 16 XT2 17 PULLDOWN I 18 ejsw 19 xint I 20 NC 21 brst I 22 BSI I 23 BSO O 24 bsck I/O C 25 FTxD O 26 FRxD I 27 BRXEN I/O 28 bsrq I/O 29 dspok 30 DSCSNS I 31 8EJ(S905) I 32 12EJ(S904) I 33 EVSS 34 EVDD 35,36 SRAMLEVEL0,1 O 37 EMPH O D 38 emph 39 CDMUTE 40 LOEJ 41 CLCONT O 42 HOME I 43 adena O 44 LRCKOK O 45 SRAMLEVEL2 O 46 CD3VON(MCKRQ) O 47 CONT O 48 xrst O 49 VDCONT O E 50 xsi I 51 xso O 52 xck O 53 xwait I 54 XASTB O 55 AD0 O 56 INT Format C C /C C /C /C C C C C C C C C C C C C C C C C Function and Operation A power supply / Positive power supply(5V) A power supply GND Chip check test program starting input Not used E power supply / Positive power supply For flash rewriting / L : flash rewriting mode For flash rewriting / Reset voltage control IC : VSS direct connection/FLMOD0 : Pull-down Positive power supply(5V) Connected to the capacity stabilizing output of the regulator GND Oscillator connection for mainclock Oscillator connection for mainclock System reset input Connected to the oscillator for subclock(connected to VSS via the resistor) Connected to the oscillator for subclock(Open) Connected to EVDD or EVSS via the resistor Not used CD LSI interruption signal input Not used Bus reset input Bus serial data input Bus serial data output Bus serial clock input/output For flash rewriting(transmitted signal) For flash rewriting(received signal) Bus RX enable input/output Bus serial clock input/output Not used Disc state sense input input of detection of 8 cm disc ejection input of detection of 12 cm disc ejection E power supply GND E power supply / Positive power supply SRAM level meter output Emphasis information output Not used Not used Not used Driver input switching output Home SW sense input A/D reference voltage supply control output (DOUT mute output) SRAM level meter output CD + 3.3 V power supply control output(Digital output : MCKRQ) Servo driver power supply control output CD LSI reset control output VD power supply control output CD LSI serial data input CD LSI serial data output CD LSI serial clock output CD LSI wait control signal input CD LSI address strobe output Address/data Bus 0 Not used F 64 DEH-2800MP/XN/UC 1 2 3 4