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M37212M6-XXXSP/FP Datasheet

  • M37212M6-XXXSP/FP

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER

  • 119頁

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
M37212M4/M8鈥揦XXSP, M37212M6鈥揦XXSP/FP
M37212EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
1. DESCRIPTION
The M37212M6-XXXSP/FP, M37212M4/M8-XXXSP are single-chip
microcomputers designed with CMOS silicon gate technology. They
have a OSD, I
2
C-BUS interface, and PWM, so it is useful for a chan-
nel selection system for TV.
The feature of the M37212EFSP/FP are similar to those of the
M37212M6-XXXSP/FP except that these chips have a built-in PROM
which can be written electrically. The differences between the
M37212M6-XXXSP/FP and M37212M4/M8-XXXSP are the ROM size
and the RAM size as shown below. Accordingly, the following de-
scriptions will be for M37212M6-XXXSP/FP unless otherwise noted.
qOSD
function
Display characters ................................... 24 characters
!
2 lines
(It is possible to display 3lines or more by software)
Kinds of characters ........................................................ 256 kinds
Character display area .............................................. 12
!
16 dots
Kinds of character sizes ..................................................... 3 kinds
Kinds of character colors .................................. 8 colors (R, G, B)
Coloring unit ................... character, character background, raster
Display position .............................................................................
Horizontal: 64 levels
Vertical: 128 levels
Attribute .............................................................................. border
2. FEATURES
q
Number
3. APPLICATION
TV
of basic instructions ..................................................... 71
q
Memory size
ROM............... ......... 16K bytes (M37212M4-XXXSP)
24K bytes (M37212M6-XXXSP/FP)
32K bytes (M37212M8-XXXSP)
62K bytes (M37212EFSP/FP)
RAM ......................... 320 bytes (M37212M4-XXXSP)
384 bytes (M37212M6-XXXSP/FP)
576 bytes (M37212M8-XXXSP)
1280 bytes (M37212EFSP/FP)
(*ROM correction memory included)
q
The minimum instruction execution time
......................................... 0.5
碌s
(at 8 MHz oscillation frequency)
q
Power source voltage .................................................. 5 V
鹵
10 %
q
Subroutine nesting
maximum 96 levels (M37212M4/M8-XXXSP, M37212M6-XXXSP/FP)
maximum 128 levels (M37212EFSP/FP)
q
Interrupts ........................................................ 14 types, 14 vectors
q
8-bit timers ................................................................................... 4
q
Programmable I/O ports
(Ports P0, P1
0
鈥揚1
4
, P2, P3
0
, P3
1,
P4
0,
P4
1
) ............................. 25
q
Input ports (Ports P1
5
鈥揚1
7
, P3
2
鈥揚3
7
, P4
2
) ............................... 10
q
Output ports (Ports P5
2
鈥揚5
5,
P6
0
鈥揚6
3
) ....................................... 8
q
12 V withstand ports .................................................................. 12
q
LED drive ports ............................................................................ 4
q
Serial I/O ............................................................. 8-bit
!
1 channel
q
Multi-master I
2
C-BUS interface ............................... 1 (2 systems)
q
A-D comparator (6-bit resolution) ................................. 8 channels
q
PWM output circuit .......................................... 14-bit
!
1, 8-bit
!
8
q
Power dissipation .............................................................. 165 mW
(at 8 MHz oscillation frequency, V
CC
=5.5V, at OSD display)
q
ROM correction function ................................................. 2 vectors
Note:
Only M37212M8-XXXSP and M37212EFSP/FP have ROM
correction function.
Rev. 1.0

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