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• IC4007
JPEG IMAGE COMPRESSION/EXPANSION (MD36050X-B5) / PICTURE BOARD (2/3)
Pin No.
Pin Name
1, 2
GND
3 ~ 12
ADDR9 ~ ADDR0
13
VDD
14
END
15
CSYNC
16
VDD
17
GND
18 ~ 22
COEF10 ~ COEF6
23
GND
24
VDD
25 ~ 28
COEF5 ~ COEF2
29, 30
GND
31, 32
COEF1, COEF0
33
COMP
34, 35
CL1, CL0
TE
L 13942296513
36
STOP
37
EOS
38
VDD
39
DSYNC
40 ~ 45
PIXEL11 ~ PIXEL6
46
VDD
47, 48
PIXEL5, PIXEL4
49, 50
PIXEL3, PIXEL2
51, 52
GND
53, 54
PIXEL1, PIXEL0
55, 56
VDD
57
FREEZE
58
RESET
59
STDBY
60
NC
61
GND
62
VDD
63
DCLK
64
CLKEN
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65
GND
.
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I/O
—
Ground
I
Address bus input
—
Power supply (+5 V)
O
Compression/expansion end signal output
I/O
The respective blocks' start signal output (Not used)
—
Power supply (+5 V)
—
Ground
O
The DCT coefficient under processing is output to outside the IC (Not used)
—
Ground
—
Power supply (+5 V)
O
The DCT coefficient under processing is output to outside the IC (Not used)
—
Ground
O
The DCT coefficient under processing is output to outside the IC (Not used)
O
CODER's internal status signal output. "H": Compression. "L": Expansion
Component signal output used during expansion (Not used)
CL0
CL1
L
L
O/Z
L
H
H
L
H
H
Active low control terminal.
I/O
During compression: Data field to picture data controller is OK or NG output
During expansion: Picture data controller ready OK signal input
Active low control terminal.
I/O
Input or output in synchronous with the final data of each scan. During compression: Input.
During expansion: Output
—
Power supply (+5 V)
I/O
Block data start signal input/output. During compression: Input. During expansion : Output
I/O
Original picture data and expanded picture data access input/output
—
Power supply (+5 V)
I/O
Original picture data and expanded picture data access input/output
I/O
Original picture data and expanded picture data access input/output (Not used)
—
Ground
I/O
Original picture data and expanded picture data access input/output (Not used)
—
Power supply (+5 V)
I
Operation freeze input. "H": Normal operation. "L": Operation freeze (Fixed to "H")
I
Reset input. "L": Reset
I
Standby signal input. "L": Standby
—
Not used
—
Ground
—
Power supply (+5 V)
I
System clock input (24.54545 MHz)
I
Internal clock control terminal. "H": Normal operation. "L": Clock line stop
—
Ground
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2 9
8
Description
Component signal used
Component 1 or non-interleave
Component 2
Component 3
Component 4
Q Q
3
6 7
1 3
1 5
co
.
— 137 —
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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