82
DEH-P840MP,P8400MP,P8450MP
-
Pin Functions (UPD63760GJ)
Pin No.
Pin Name
I/O
Function and Operation
1
R.GND
GND for DRAM I/F
2
rst
I
Input of reset
3-7
AB12-8
I
Address bus 12-8 from the microcomputer
8-15
AD7-0
I/O
Address/data bus 7-0 to the microcomputer
16
cs
I
Chip selection
17
ASTB
I
Address strobe
18
read
I
Control signals (read)
19
write
I
Control signals (write)
20
wait
O
Control signals (wait)
21
INTQ
Interruption signals to the external microcomputer
22
IFMODE
I
Switching between the data buses (16bit/8bit)
23
D.VDD
Power supply for digital circuits
24
xtalen!
I
Permission to oscillate 16.9344MHz
25
xtalen@
I
Permission to oscillate 24.576MHz
26
DA.VDD
Power supply for DAC
27
ROUT
O
Output of audio for the right channel
28
DA.GND
GND for DAC
29
R+
O
Output of the right channel audio PWM
30
R-
O
Output of the right channel audio PWM
31
REGC
Connected to the capacitor for band gap
32
L-
O
Output of the left channel audio PWM
33
L+
O
Output of the left channel audio PWM
34
DA.GND
GND for DAC
35
LOUT
O
Output of audio for the left channel
36
DA.VDD
Power supply for DAC
37
X.VDD
Power supply for the crystal oscillator
38
XTAL1
Connected to the crystal oscillator (16.9344MHz)
39
xtal!
Connected to the crystal oscillator (16.9344MHz)
40, 41
X.GND
Ground for the crystal oscillator
42
xtal@
Connected to the crystal oscillator (24.576MHz)
43
XTAL2
Connected to the crystal oscillator (24.576MHz)
44
X.VDD
Power supply for the crystal oscillator
45
D.GND
GND for digital circuits
46
DIN
I
Input of audio data
47
DOUT
O
Output of audio data
48
SCKIN
I
Clock input for audio data
49
SCKO
O
Clock output for audio data
Input of LRCK for audio data
Output LRCK for audio data
Output for tests
Output of RFOK
Output of 16.9344MHz
Connected to GND
Connected to GND
Power supply for digital circuits
Output of RFCK/HOLD signal
Output of WFCK/MIRR signal
Output of PLCK
Output of LOCK
62
C1D1
O
Information on error correction
63
C1D2
O
Information on error correction
64
C2D1(RMUTE)
O
Information on error correction (mute for Rch)
65
C2D2(LMUTE)
O
Information on error correction (mute for Lch)
66
C2D3
O
Information on error correction
67
D.GND
Ground for digital circuits
68
ras
O
Output of DRAM RAS
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
