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PDF M37212M6 Data sheet ( Hoja de datos )
| Número de pieza | M37212M6 | |
| Descripción | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI MICROCOMPUTERS
M37212M4/M8–XXXSP, M37212M6–XXXSP/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, I2C-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.
2. FEATURES
qNumber of basic instructions ..................................................... 71
qMemory 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)
qThe minimum instruction execution time
......................................... 0.5 µs (at 8 MHz oscillation frequency)
qPower source voltage .................................................. 5 V ± 10 %
qSubroutine nesting
maximum 96 levels (M37212M4/M8-XXXSP, M37212M6-XXXSP/FP)
maximum 128 levels (M37212EFSP/FP)
qInterrupts ........................................................ 14 types, 14 vectors
q8-bit timers ................................................................................... 4
qProgrammable I/O ports
(Ports P0, P10–P14, P2, P30, P31, P40, P41) ............................. 25
qInput ports (Ports P15–P17, P32–P37, P42) ............................... 10
qOutput ports (Ports P52–P55, P60–P63) ....................................... 8
q12 V withstand ports .................................................................. 12
qLED drive ports ............................................................................ 4
qSerial I/O ............................................................. 8-bit ! 1 channel
qMulti-master I2C-BUS interface ............................... 1 (2 systems)
qA-D comparator (6-bit resolution) ................................. 8 channels
qPWM output circuit .......................................... 14-bit ! 1, 8-bit ! 8
qPower dissipation .............................................................. 165 mW
(at 8 MHz oscillation frequency, VCC=5.5V, at OSD display)
qROM correction function ................................................. 2 vectors
Note: Only M37212M8-XXXSP and M37212EFSP/FP have ROM
correction function.
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
3. APPLICATION
TV
Rev. 1.0
1 page  
MITSUBISHI MICROCOMPUTERS
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
M37212EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
5. FUNCTIONAL BLOCK DIAGRAM
Fig. 5.1 Functional Block Diagram of M37212
Rev. 1.0
5
5 Page 
MITSUBISHI MICROCOMPUTERS
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
M37212EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
PortsP16, P17
Data bus
PortsP15, P32–P37, P42
TIM2, TIM3,
INT1,
INT2, SIN, INT3
Data bus
Ports P60–P63
Data bus
Port latch
D-A, R, G, B, OUT1 , OUT2
Internal circuit
HSYNC, VSYNC
Internal circuit
Ports P16, P17
Note : Each port is also used as follows :
P16 : A-D2
P17 : A-D3
Schmidt input
Ports P15, P32–P37, P42
Note : Each port is also used as follows :
P15 : INT3/A-D1
P32 : TIM2
P33 : TIM3
P34 : INT1
P35 : INT2/A-D4
P36 : OSC1
P37 : OSC2
P42 : SIN/A-D5
N-chanel open drain output
Ports P60–P63
Note : Each port is also used as follows :
P60–P63 : PWM0–PWM3
CMOS output
Ports D-A, R, G, B, OUT1, OUT2
Note : Each pin is also used as follows :
R : P52
G : P53
B : P54
OUT1 : P55
OUT2 : P10/A-D8
Schmidt input
Ports HSYNC, VSYNC
Fig. 7.2 I/O Pin Block Diagram (2)
Rev. 1.0
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet M37212M6.PDF ] | |
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