M37274EFSP Datasheet, PDF (1/147 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
PRELIMINARY ^M37274EFSP _{NSootimcee: pTahriasmisennotitcalimfinitasl} ^{asrpeecsiufibcjaetciotnto. change.}
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
DESCRIPTION
The M3727EFSP is a single-chip microcomputer designed with CMOS
silicon gate technology. It is housed in a 52-pin shrink plastic molded
DIP.
In addition to their simple instruction sets, the ROM, RAM and I/O
addresses are placed on the same memory map to enable easy pro-
gramming.
The M3727EFSP has a OSD function and a data slicer function, so it
is useful for a channel selection system for TV with a closed caption
decoder.
FEATURES
• ^{Number of basic instructions ..................................................... 71}
• ^{Memory size}
ROM ....................................................... 60 K bytes
RAM ........................................................ 1024 bytes
ROM correction memory ............................. 64 bytes
ROM for OSD ....................................... 11072 bytes
RAM for OSD .......................................... 1920 bytes
• ^{Minimum instruction execution time}
......................................... 0.5 µs (at 8 MHz oscillation frequency)
• ^{Power source voltage ................................................... 5 V ± 10 %}
• ^{Subroutine nesting ............................................. 128 levels (Max.)}
• ^{Interrupts ....................................................... 18 types, 16 vectors}
• ^{8-bit timers .................................................................................. 6}
• ^{Programmable I/O ports (Ports P0, P1, P2, P30, P31) .............. 26}
• ^{Input ports (Ports P40–P46, P63, P64, P70–P72) ...................... 12}
• ^{Output ports (Ports P52–P55) ...................................................... 4}
• ^{12 V withstand ports .................................................................... 7}
• ^{LED drive ports ........................................................................... 2}
• ^{Serial I/O ............................................................ 8-bit ! 1 channel}
• ^{Multi-master I2C-BUS interface ................................ 1 (2 systems)}
• ^{A-D converter (8-bit resolution) .................................... 6 channels}
• ^{PWM output circuit ......................................... 14-bit ! 1, 8-bit ! 7}
• ^{Power dissipation}
In high-speed mode .......................................................... 165mW
(at VCC = 5.5V, 8MHz oscillation frequency, CRT on, and Data
slicer on)
In low-speed mode ........................................................... 0.33mW
(at VCC = 5.5V, 32kHz oscillation frequency)
• ^{Data slicer}
• ^{ROM correction function}
• ^{OSD function}
Display characters ............................... 40 characters ! 16 lines
Kinds of characters ..................................................... 256 kinds
(In EXOSD mode, they can be combined with 16 kinds of extra
fonts)
Character display area ........................ CC mode : 16 ! 26 dots
OSD mode : 16 ! 20 dots
EXOSD mode : 16 ! 26 dots
Kinds of character sizes ............................... CC mode : 2 types
OSD mode : 14 types
EXOSD mode : 6 types
Kinds of character background colors
CC mode : 7 kinds (a character unit)
OSD mode : 7 kinds (a character unit)
EXOSD mode : 5 kinds (a character unit)
It can be specified by a screen unit (maximum 7 kinds).
Extra font coloring, raster coloring, border coloring
Kinds of character colors ............... CC mode : 7 kinds (R, G, B)
OSD mode : 7 kinds (R, G, B)
EXOSD mode : 5 kinds (R, G, B)
Display position
Horizontal ................................................................ 256 levels
Vertical .................................................................. 1024 levels
Attribute ...................... CC mode : smooth italic, underline, flash
OSD mode : border
EXOSD mode : border,
extra font (16 kinds)
Automatic solid space function
Window function
Dual layer OSD function
APPLICATION
TV with a closed caption decoder