Pioneer DEH-P740MP Service Manual page 82

DEH-P740MP,P7400MP,P7450MP
- Pin Functions (UPD63760GJ)
Pin No. Pin Name
1 R.GND
rst
2
3-7 AB12-8
8-15 AD7-0
cs
16
17 ASTB
read
18
write
19
wait
20
21 INTQ
22 IFMODE
23 D.VDD
xtalen!
24
xtalen@
25
26 DA.VDD
27 ROUT
28 DA.GND
29 R+
30 R-
31 REGC
32 L-
33 L+
34 DA.GND
35 LOUT
36 DA.VDD
37 X.VDD
38 XTAL1
xtal!
39
40, 41 X.GND
xtal@
42
43 XTAL2
44 X.VDD
45 D.GND
46 DIN
47 DOUT
48 SCKIN
49 SCKO
50 LRCKIN
51 LRCK
52 TESTX
53 RFOK
54 C16M
55 TESTEN
56 TEST4
57 D.VDD
58 RFCK/HOLD
59 WFCK/MIRR
60 PLCK
61 LOCK
62 C1D1
63 C1D2
64 C2D1(RMUTE)
65 C2D2(LMUTE)
66 C2D3
67 D.GND
ras
68
82
I/O Function and Operation
GND for DRAM I/F
I Input of reset
I Address bus 12-8 from the microcomputer
I/O Address/data bus 7-0 to the microcomputer
I Chip selection
I Address strobe
I Control signals (read)
I Control signals (write)
O Control signals (wait)
Interruption signals to the external microcomputer
I Switching between the data buses (16bit/8bit)
Power supply for digital circuits
I Permission to oscillate 16.9344MHz
I Permission to oscillate 24.576MHz
Power supply for DAC
O Output of audio for the right channel
GND for DAC
O Output of the right channel audio PWM
O Output of the right channel audio PWM
Connected to the capacitor for band gap
O Output of the left channel audio PWM
O Output of the left channel audio PWM
GND for DAC
O Output of audio for the left channel
Power supply for DAC
Power supply for the crystal oscillator
Connected to the crystal oscillator (16.9344MHz)
Connected to the crystal oscillator (16.9344MHz)
Ground for the crystal oscillator
Connected to the crystal oscillator (24.576MHz)
Connected to the crystal oscillator (24.576MHz)
Power supply for the crystal oscillator
GND for digital circuits
I Input of audio data
O Output of audio data
I Clock input for audio data
O Clock output for audio data
I Input of LRCK for audio data
O Output LRCK for audio data
O Output for tests
O Output of RFOK
O Output of 16.9344MHz
I Connected to GND
I Connected to GND
Power supply for digital circuits
O Output of RFCK/HOLD signal
O Output of WFCK/MIRR signal
O Output of PLCK
O Output of LOCK
O Information on error correction
O Information on error correction
O Information on error correction (mute for Rch)
O Information on error correction (mute for Lch)
O Information on error correction
Ground for digital circuits
O Output of DRAM RAS