Pioneer DEH-P680MP/XN/UC Service Manual page 66

1
- Pin Functions (PE5505A)
Pin No. Pin Name
1 AVREF
2 AVSS
A
testin
3
4 CLAMP
5 EVDD
6 FMODE
7 FLRQ
IC/FLMD0
8
9 VDD
10 REGC
11 VSS
12 X1
13 X2
reset
14
B
15 XT1
16 XT2
17 PULLDOWN
ejsw
18
xint
19
20 NC
brst
21
22 BSI
23 BSO
bsck
24
25 FTxD
C
26 FRxD
27 BRXEN
bsrq
28
dspok
29
30 DSCSNS
31 8EJ(S905)
32 12EJ(S904)
33 EVSS
EVDD
34
35,36 SRAMLEVEL0,1
37 EMPH
emph
38
D
39 CDMUTE
40 LOEJ
41 CLCONT
42 HOME
adena
43
44 LRCKOK
45 SRAMLEVEL2
46 CD3VON(MCKRQ)
47 CONT
xrst
48
49 VDCONT
xsi
50
E
xso
51
xck
52
xwait
53
54 XASTB
55 AD0
56 INT
F
66
1
2
Function and Operation
I/O Format
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 outputof the regulator
GND
Oscillator connection for mainclock
I
Oscillator connection for mainclock
System reset input
I
I Connected to the oscillator for subclock(connected to VSS via the resistor)
Connected to the oscillator for subclock(Open)
I Connected to EVDD or EVSS via the resistor
Not used
CD LSI interruption signal input
C
Not used
Bus reset input
I
I Bus serial data input
Bus serial data output
O C
Bus serial clock input/output
I/O /C
For flash rewriting(transmitted signal)
O C
For flash rewriting(received signal)
I
Bus RX enable input/output
I/O /C
Bus serial clock input/output
I/O /C
Not used
Disc state sense input
I C
inputof detection of 8 cm disc ejection
O C
inputof detection of 12 cm disc ejection
O C
E power supply GND
E power supply / Positive power supply
SRAM level meter output
O C Emphasis information output
Not used
Not used
Not used
Driver input switching output
Home SW sense input
A/D reference voltage supply control output
O C
O C (DOUT mute output)
SRAM level meter output
O C
CD + 3.3 V power supply control output(Digital output : MCKRQ)
O C
Servo driver power supply control output
O C
CD LSI reset control output
O C
O C VD power supply control output
CD LSI serial data input
I/O /C
O C CD LSI serial data output
CD LSI serial clock output
O C
CD LSI wait control signal output
O C
CD LSI address strobe output
O C
Address/data Bus 0
O C
Not used
DEH-P680MP/XN/UC
2
3
3
4
4