M37281EKSP Datasheet, PDF (1/172 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M37281MAH–XXXSP,M37281MFH–XXXSP,M37281MKH–XXXSP,
M37281EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
REJ03B0049-0101Z
Rev.1.01
2003.07.16
1. DESCRIPTION
The M37281MAH–XXXSP, M37281MFH–XXXSP and M37281MKH-
XXXSP are single-chip microcomputers designed with CMOS silicon
gate technology. They have a OSD function and a data slicer func-
tion, so it is useful for a channel selection system for TV with a closed
caption decoder.
The feautures of the M37281EKSP is similar to those of the
M37281MKH-XXXSP except that the chip has a built-in PROM which
can be written electrically. The difference between M37281MAH–
XXXSP, M37281MKH-XXXSP and M37281MFH-XXXSP are the ROM
size and RAM size. Accordingly, the following descriptions will be for
the M37281MKH-XXXSP.
2. FEATURES
qNumber of basic instructions .................................................... 71
qMemory size
ROM .................. 40K bytes (M37281MAH-XXXSP)
60K bytes (M37281MFH-XXXSP)
80K bytes (M37281MKH-XXXSP,
M37281EKSP)
RAM ................... 1088 bytes (M37281MAH-XXXSP,
M37281MFH-XXXSP)
1536 bytes (M37281MKH-XXXSP,
M37281EKSP)
(*ROM correction memory included)
qMinimum instruction execution time
......................................... 0.5 µs (at 8 MHz oscillation frequency)
qPower source voltage ................................................. 5 V ± 10 %
qSubroutine nesting ............................................. 128 levels (Max.)
qInterrupts ....................................................... 19 types, 16 vectors
q8-bit timers .................................................................................. 6
qProgrammable I/O ports (Ports P0, P1, P2, P30, P31) ............. 26
qInput ports (Ports P40–P46, P63, P64, P70–P72) ...................... 12
qOutput ports (Ports P52–P55) ..................................................... 4
qLED drive ports ........................................................................... 2
qSerial I/O ............................................................ 8-bit ✕ 1 channel
qMulti-master I²C-BUS interface .............................. 1 (2 systems)
qA-D converter (8-bit resolution) .................................... 8 channels
qPWM output circuit ......................................................... 8-bit ✕ 8
qPower dissipation
In high-speed mode ......................................................... 165 mW
(at VCC = 5.5V, 8 MHz oscillation frequency, OSD on, and Data
slicer on)
In low-speed mode ......................................................... 0.33 mW
(at VCC = 5.5V, 32 kHz oscillation frequency)
qROM correction function ................................................ 2 vectors
qClosed caption data slicer
qOSD function
Display characters .... 32 characters ✕ 16 lines + RAM font (1 character)
(CC/OSD mode)(CDOSD mode)(RAM font)
Kinds of characters ......... 510 kinds + 62 kinds + 1 kind
(Coloring unit)
(a character)
(a dot)
(a dot)
Triple layer function .......................................................................
2 layers selected from CC/CDOSD/OSD mode + RAM font layer
Character display area .............. CC/CDOSD mode: 16 ✕ 26 dots
OSD mode/RAM font: 16 ✕ 20 dots
Kinds of character sizes .................... CC mode/RAM font: 4 kinds
OSD/CDOSD mode: 14 kinds
Kinds of character colors ..............................................................
64 colors (4 adjustment levels for each R, G, B)
Coloring unit ............ dot, character, character background, raster
Blanking output OUT1, OUT2
Display position
Horizontal: 256 levels
Vertical :1024 levels
(RAM font can be set independently)
Attribute ........................................................................................
CC mode: smooth italic, underline, flash, automatic solid space
OSD mode: border, shadow
Window/Blank function
3. APPLICATION
TV with a closed caption decoder
Rev.1.01 2003.07.16 page 1 of 171