m35053 Renesas Electronics Corporation., m35053 Datasheet - Page 3

• Manufacturer Part Number: m35053
• Description: Screen Character And Pattern Display Controllers
• Manufacturer: Renesas Electronics Corporation.

PIN DESCRIPTION
2
OSC1
TESTA
__
CS
SCK
SIN
__
AC
V
CVIDEO
LECHA
CVIN
V
EDO
TESTB
P0
P1
V
OSCIN
CP2
HOR
V
Symbol
DD2
SS
SS
DD1
Clock input
Test pin
Chip select input
Serial clock input
Serial data input/
output
Auto-clear input
Power pin
Composite video
signal output
Character level input
Composite video
signal input
Earthing pin
Encode data output
Test pin
Port P0 output
Port P1 output
Earthing pin
f
synchronous signal
generation
Filter output
Horizontal synchro-
nizing signal input
Power pin
SC
input pin for
Pin name
Output
Output
Output
Output
Output
Output
Output
Input/
Input/
Input
Input
Input
Input
Input
Input
Input
Input
—
—
—
—
—
—
This is the input pin for the sub-carrier frequency (f
signal.
This is the filter output pin 1.
This is the pin for test. Connect this pin to GND during normal operation.
This is the chip select pin, and when serial data transmission is being carried out, it goes
to “L”. Hysteresis input. Includes built-in pull-up resistor.
When CS pin is “L”, SIN serial data is taken in when SCK rises. Hysteresis input. Built-in
pull-up resistor is included.
This is the pin for serial input of data and addresses for the display control register and
the display data memory. Also, serially outputs decode data according to the settings in
the relevant registers (serial I/O).
When “L”, this pin resets the internal IC circuit. Hysteresis input. Includes built-in pull-up
resistor.
Please connect to +5V with the analog circuit power pin.
This is the output pin for composite video signals. It outputs 2V
signals. In superimpose mode, character output etc. is superimposed on the external
composite video signals from CVIN.
This is the input pin which determines the “white” character color level in the composite
video signal.
This is the input pin for external composite video signals. In superimpose mode, character
output etc. is superimposed on these external composite video signals.
Please connect to GND using circuit earthing pin.
This is the output pin for encode data. It outputs digital three-value data or composite video signals.
This is the pin for test. Connect this pin to GND during normal operation.
This pin outputs the port output or BLNK1 (character background) signal.
This pin outputs the port output or CO1(character) signal.
Please connect to GND using circuit earthing pin (Analog side).
A frequency of 3.580MHz is needed for NTSC, and a frequency of 4.434MHz in needed
for PAL and 3.576MHz is needed for M-PAL.
Filter output pin 2.
This is the input pin for external composite video signals. This pin inputs the external
video signal clamped sync-chip to 1.5V, and internally carries out synchronous separa-
tion.
Please connect to +5V with the digital circuit power pin.
__
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
Function
MITSUBISHI MICROCOMPUTERS
SC
M35053-XXXSP/FP
) for generating a synchronous
P-P
composite video