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M37272MA-309SP Datasheet

  • M37272MA-309SP

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DEC...

  • 1418.02KB

  • 142頁

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
M37272M6/M8鈥揦XXSP/FP, M37272MA鈥揦XXSP
M37272E8SP/FP, M37272EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
1. DESCRIPTION
The M37272M6/M8-XXXSP/FP and M37272MA-XXXSP are single-
chip microcomputers designed with CMOS silicon gate technology.
They have a OSD, data slicer, and I
2
C-BUS interface, so it is useful
for a channel selection system for TV with a closed caption decoder.
The features of the M37272E8SP/FP and M37272EFSP are similar
to those of the M37272M6-XXXSP except that the chip has a built-in
PROM which can be written electrically. The difference between
M37272M6-XXXSP/FP, M37272M8-XXXSP/FP and M37272MA-
XXXSP are the ROM size and RAM size. Accordingly, the following
descriptions will be for the M37272M6-XXXSP/FP.
2. FEATURES
qNumber
of basic instructions .................................................... 71
qMemory
size
ROM .............. 24K bytes
(M37272M6-XXXSP/FP)
32K bytes
(M37272M8-XXXSP/FP, M37272E8SP/FP)
40K bytes
(M37272MA-XXXSP)
60K bytes
(M37272EFSP)
RAM ............... 1024 bytes
(M37272M6-XXXSP/FP)
1152 bytes
(M37272M8-XXXSP/FP, M37272E8SP/FP)
1472 bytes
(M37272MA-XXXSP, M37272EFSP)
(*ROM correction memory included)
qMinimum
instruction execution time
......................................... 0.5
碌s
(at 8 MHz oscillation frequency)
qPower
source voltage ................................................. 5 V 鹵 10 %
qSubroutine
nesting ............................................. 128 levels (Max.)
qInterrupts
....................................................... 17 types, 16 vectors
q8-bit
timers .................................................................................. 6
qProgrammable
I/O ports (Ports P0, P1, P2, P3
0
, P3
1
) ............. 26
qInput
ports (Ports P5
0
, P5
1
) ........................................................ 2
qOutput
ports (Ports P5
2
鈥揚5
5
) ..................................................... 4
q12
V withstand ports ................................................................... 6
qLED
drive ports ........................................................................... 4
qSerial
I/O ............................................................ 8-bit
!
1 channel
qMulti-master
I
2
C-BUS interface .............................. 1 (2 systems)
qA-D
comparator (6-bit resolution) ................................ 6 channels
qPWM
output circuit ......................................................... 8-bit
!
6
qPower
dissipation
In high-speed mode ......................................................... 165 mW
(at V
CC
= 5.5V, 8 MHz oscillation frequency, OSD on, and Data
slicer on)
In low-speed mode ......................................................... 0.33 mW
(at V
CC
= 5.5V, 32 kHz oscillation frequency)
qROM
correction function ................................................ 2 vectors
qClosed
caption data slicer
q
OSD function
Display characters ................................... 32 characters
!
2 lines
(It is possible to display 3 lines or more by software)
Kinds of characters ........................................................ 254 kinds
Character display area ............................ CC mode: 16
!
26 dots
OSD mode: 16
!
20 dots
Kinds of character sizes ..................................... CC mode: 1 kind
OSD mode: 8 kinds
Kinds of character colors .................................. 8 colors (R, G, B)
Coloring unit ................... character, character background, raster
Display position
Horizontal: 128 levels
Vertical: 512 levels
Attribute ........................................................................................
CC mode: smooth italic, underline, flash, automatic solid space
OSD mode: border
Smoth roll-up
Window function
3. APPLICATION
TV with a closed caption decoder
Rev. 1.4

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