M35053 Datasheet, PDF (2/47 Pages) Mitsubishi Electric Semiconductor – SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

MITSUBISHI MICROCOMPUTERS
M35053-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PIN DESCRIPTION
Symbol
Pin name
OSC1
TESTA
__
CS
Clock input
Test pin
Chip select input
SCK
Serial clock input
SIN
Serial data input/
output
__
AC
Auto-clear input
VDD2
CVIDEO
Power pin
Composite video
signal output
LECHA Character level input
CVIN
VSS
EDO
TESTB
P0
P1
VSS
OSCIN
Composite video
signal input
Earthing pin
Encode data output
Test pin
Port P0 output
Port P1 output
Earthing pin
fSC input pin for
synchronous signal
generation
CP2
HOR
Filter output
Horizontal synchro-
nizing signal input
VDD1
Power pin
Input/
Output
Input
—
Input
Input
Input/
Output
Input
—
Output
Input
Input
—
Output
—
Output
Output
—
Input
Output
Input
—
Function
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 2VP-P composite video
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).
This is the input pin for the sub-carrier frequency (fSC) for generating a synchronous
signal.
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.
2