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DVL-K88
7. GENERAL INFORMATION
7.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
PD4929B (FLKY ASSY: IC101)
Syetem microcomputer for DVD karaoke and Syetem microcomputer for FL
Pin Function
No.
Pin Name
1
T6
2
T5
3
T4
4
T3
5
T2
6
T1
7
T0
8
Vcc
9
XSCK0
10
SO0
11
SI0
12
LATCH
13
XREADY
14
XSCK1
15
SO1
16
SI1
17
XRESET IN
18
I/O CLK
19
I/O DATA
20
Vss
21
XREXET OUT
22
KEY0
23
KEY1
24
KEY2
25
ECHO VOL
26
G.V. VOL
27
MIC CONT
28
MODEL SELECT
29
AVDD
30
AVREF
31
XREQ
32
NC
33
Vss
34
X1
35
X2
36
LED(GUIDE V.)
37
A/XD
38
XDRDY
39
DSP XCS
40
POWER ON
78
I/O
Function
O
FL grid output
O
FL grid output
O
FL grid output
O
FL grid output
O
FL grid output
O
FL grid output
O
FL grid output
-
Positive power supply
O
Serial communication clock for DSP
O
Serial communication data output for DSP
I
Serial communication data input for DSP
I
Communication permission input from system microcomputer
O
Communication request output to system microcomputer
(*1)
Serial communication clock for system microcomputer
(*1)
Serial communication data output to system microcomputer
I
Serial communication data input from System microcomputer
I
Reset input
O
Clock output for I/O expander
O
Data output for I/O expander
-
Ground voltage for A/D converter
O
System reset signal output
I
Key input (A/D input)
I
Key input (A/D input)
I
Key input (A/D input)
I
Digital echo volume input (A/D input)
I
Guide vocal sound volume input (A/D input)
I
MIC control input (A/D input)
I
Version selector (A/D input)
-
Analog power supply for A/D converter
I
Reference voltage input for A/D converter
I
Data transfer request input from DSP
O
Not used
-
Ground voltage
I
System clock oscillation connection
-
System clock oscillation connection
O
Guide vocal sound volume LED (L:lit)
O
Address/data selector for DSP
I
Signal reception ready status input from DSP
O
Chip select output for DSP
O
System power ON signal output
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