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M35054

SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

Mitsumi 

MITSUBISHI MICROCOMPUTERS

M35054-XXXFP/M35055-XXXFP

SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

DESCRIPTION

The M35054-XXXFP and M35055-XXXFP are TV screen display con-

trol IC which can be used to display information such as number of

channels, the date and messages and program schedules on the TV

screen.

In particular, owing to the built-in SYNC-SEP (synchronous separa-

tion) circuit, the synchronous correction circuit, external circuits can

be decrease and character turbulence that occurs when superim-

posing can be reduced. The processor is suitable for AV systems

such as VTRs, LDs, and so on.

It is a silicon gate CMOS process and M35054-XXXFP and M35055-

XXXFP are housed in a 20-pin shrink SOP package.

For M35054-001FP/M35055-001FP that are a standard ROM ver-

sions of M35054-XXXFP/M35055-XXXFP respectively, the charac-

ter pattern is also mentioned.

FEATURES

• Screen composition .............................. 24 characters ! 10 lines,

32 characters ! 7 lines

• Number of characters displayed .................................. 240 (Max.)

• Character composition ..................................... 12 ! 18 dot matrix

• Characters available ............................. 128 characters (M35054)

............................. 256 characters (M35055)

• Character sizes available .................... 4 (horizontal) ! 4 (vertical)

• Display locations available

Horizontal direction ............................................... 240 locations

Vertical direction ................................................... 256 locations

• Blinking ................................................................. Character units

Cycle : approximately 1 second, or approximately 0.5 seconds

Duty : 25%, 50%, or 75%

• Data input .............................. By the serial input function (16 bits)

• Coloring

Background coloring (composite video signal)

• Blanking

Total blanking (14 ! 18 dots)

Border size blanking

Character size blanking

• Synchronizing signal

Composite synchronizing signal generation

(PAL, NTSC, M-PAL)

• 2 output ports (1 digital line)

• Oscillation stop function

It is possible to stop the oscillation for synchronizing signal

generation

• Built-in half-tone display function

• Built-in reversed character display function

• Built-in synchronous correction circuit

• Built-in synchronous separation circuit

APPLICATION

TV, VCR, Movie

PIN CONFIGURATION (TOP VIEW)

CP1 ← 1

TESTA

2

CS → 3

SCK → 4

SIN → 5

AC → 6

VDD2

7

CVIDEO ← 8

LECHA → 9

CVIN → 10

20

VDD1

19 ← HOR

18 → CP2

17 ← OSCIN

16

VSS

15 → P1

14 → P0

13

TESTB

12

TESTC

11

VSS

Outline 20P2Q-A

REV.1.1

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