-73-
Pin No.
Pin Name
I/O
Description
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99, 100
101
102
103
112
113
114
115
116
117
USDA
UML
UMC
UMD
__________________
WDTOVF
______________
RESET
NMI
___________
STBY
VCC
XTAL
EXTAL
VSS
fO
VCC
______
AS
______
RD
__________
HWR
__________
LWR
_______
LAS
PFO
HRST
CS_SO
CS_SI
VSS
CS_SCK
TEST MUTE
AVCC
SV2
AVSS
VSS
CS4228 CS
RGB/YC
CS49326 INT
O
O
O
O
O
I
I
I
—
I
I
—
O
—
—
O
O
O
O
O
O
O
I
—
O
O
—
I
I
I
I
I
I
I
O
—
—
O
I
I
I
2
C data output terminal for EERROM, video encoder IC.
Data enable signal output terminal for AUDIO DAC IC control.
Clock for AUDIO DAC IC control.
Data output terminal for AUDIO DAC IC control.
Watch dog timer overflow signal output terminal.
Micro processor reset input terminal.
Fixed is to “H”.
Power input terminal. EVER +3.3 V.
Crystal oscilator input terminal. 20 MHz.
GND.
Not used. (System clock output for external device)
Power input terminal. EVER +3.3 V.
Not used. (Address strobe)
Lead signal output terminal for bus control.
“H” write signal output terminal for bus control.
“L” write signal output terminal for bus control.
Lower column address strobe output terminal.
Not used. (Bus request acknowlege)
Reset signal output terminal for LOADER.
Serial control data output.
Serial control data input.
GND.
Serial clock terminal.
Test terminal. (Pull up)
Power supply input terminal for A/D. EVER +3.3V.
Reference voltage input terminal for A/D. EVER +3.3V.
Not used.
_____________
WRITE input pin.
_____
RY/BY input pin.
LOADER READY signal input terminal.
NT/PAL sw input pin.
C2 Flag inputpin.
Deemphasis monitor input pin.
Voltage output for S2 terminal. S1 = 5V S2 = 2.5 V Normally = 0 V.
GND.
CS4228 CS output pin.
RGB/YC input pin.
CS49326 INT select input pin.
IC DESCRIPTION-7/10 (HD6412320VF25)-2/3
www. xiaoyu163. com
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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
