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DSP-AX1/RX-V1
IC12 : M35013-079SP (P.C.B. VIDEO)
Superimpose
OSC1
1
OSC2
2
CS
3
SCK
4
SIN
5
AC
6
VDD2
7
8
CVIDE0
LECHA
9
CVIN
10
Pin No.
Symbol
Terminal name
1
OSC1
External terminal for
2
OSC2
oscillation circuit
3
Chip select input
CS
4
SCK
Serial clock input
5
SIN
Serial data input
6
Auto clear input
AC
7
V
2
Power supply terminal
DD
8
CVIDEO
Composite video signal
output
9
LECHA
Character level input
10
CVIN
Video input
11
V
Ground terminal
SS
12
P0
Port 0 output
13
P1
Port 1 output
14
P2
Port 2 output
15
P3
Port 3 output
16
OSCOUT
Oscillation circuit for
17
OSCIN
generation of
synchronous signals
18
HOR*
Horizontal synchronous
signal input
19
VERT*
Vertical synchronous
signal input
20
V
1
Power supply terminal
DD
53
VDD1
20
19
VERT
CS
3
INPUT
SCK
4
18
HOR
CONTROL
SIN
5
17
OSCIN
DATA
CONTROL
16
OSCOUT
15
DISPLAY
P3
CONTROL
REGISTER
14
P2
13
P1
12
P0
V
1
20
DD
DISPLAY CHARACTER ROM
AC
6
11
VSS
V
SS
11
V
2
DD
7
External terminal of oscillation circuit for display.
The standard oscillation frequency is about 7MHz.
The display position in the horizontal direction and width of characters on the TV screen
are determined according to this oscillation frequency.
Chip select terminal
"L" is set when the serial data is transferred.
Hysteresis input. A pull-up resistor is built in.
When CS terminal is "L", the SIN serial data is taken in at the SCK rise.
Hysteresis input. A pull-up resistor is built in.
The data and addresses for the display control register and display data memory are input
in serial form.
Hysteresis input. A pull-up resistor is built in.
The IC internal circuit is reset when in "L" state.
Hysteresis input. A pull-up resistor is built in.
Analog type power supply terminal that should be connected to +5V.
Output terminal for composite video signal
2Vp-p composite video signal is output.
When making a superimposition, the character output and other features are superim-
posed on the composite video signals input through the CVIN terminal.
Input terminal to determine the output level for the characters in the composite video
signals. The color of characters is white.
Input terminal for external composite video signals.
When making a superimposition, the character output and other features are superim-
posed on these composite video signals.
Connection to GND is made by using this terminal.
Port terminal output or character background signals (BLNK1*) are output.
The polarity can be selected when determining the font ROM.
Port terminal output or character background signals (CO1*) are output.
The polarity can be selected when determining the font ROM.
Port terminal output or character background signals (BLNK2*) are output.
The polarity can be selected when determining the font ROM.
Port terminal output or character background signals (CO2*) are output.
The polarity can be selected when determining the font ROM.
External terminal of the oscillation circuit for generation of synchronous signals.
The oscillation frequency is 14.32MHz when the NTSC system is used and 17.73MHz
when the PAL system is used.
Horizontal synchronous signals are input.
Hysteresis input
The polarity can be selected when determining the font ROM.
Vertical synchronous signals are input.
Hysteresis input
The polarity can be selected when determining the font ROM.
Digital type power supply terminal that should be connected to +5V.
1
2
TIMING
SIGNAL
SEPARATION
OSC
(DISPLAY)
H COUNTER
DISPLAY
ADDRESS
CONTROL
POSITION
DETECTOR
TIMING
GENERATOR
ADDRESS READ
CONTROL
DISPLAY
DISPLAY DATA MEMORY
CONTROL
SHIFT
BLANKING
CIRCUIT
REGISTER
Function
18
19
TUNING
SIGNAL
SELECTOR
TUNING
17
OSC IN
SIGNAL
OSC
16
OSC OUT
TIMING
GENERATOR
8
CVIDEO
NTSC
VIDEO
LECHA
9
OUTPUT
10
CVIN
12
P0
P1
13
14
P2
P3
15
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