MITSUBISHI MICROCOMPUTERS
M35054-XXXFP/M35055-XXXFP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
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.
1
2
20
19
18
17
16
15
14
13
12
11
CP1
TESTA
CS
VDD1
←
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.
HOR
←
→
←
3
CP2
→
→
→
→
4
SCK
SIN
OSCIN
5
V
SS
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.
6
AC
P1
→
→
7
V
DD2
P0
8
CVIDEO
LECHA
CVIN
TESTB
TESTC
←
→
→
9
FEATURES
10
V
SS
Screen composition .............................. 24 characters ✕ 10 lines,
•
32 characters ✕ 7 lines
Outline 20P2Q-A
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
REV.1.1