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| 型號(hào)： | M37225M8 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| 中文描述： | 單芯片8位CMOS微機(jī)電壓合成與屏幕顯示控制器 |
| 文件頁(yè)數(shù)： | 1/133頁(yè) |
| 文件大?。?/td> | 1610K |
| 代理商： | M37225M8 |
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1. DESCRIPTION
The M37225M6-XXXSP, M37225M8-XXXSP, and M37225ECSP are
single-chip microcomputers designed with CMOS silicon gate tech-
nology. They have a OSD, I
2
C-BUS interface, PWM output, and 12 V
withstand, so it is useful for a channel selection system for TV.
The features of the M37225ECSP are similar to those of the
M37225M6-XXXSP except that the chip has a built-in PROM which
can be written electrically. The difference between M37225M6-XXXSP
and M37225M8-XXXSP are the ROM size. Accordingly, the follow-
ing descriptions will be for the M37225M6-XXXSP.
2. FEATURES
G
Number of basic instructions .................................................... 71
G
Memory size
ROM ..................... 24K bytes (M37225M6-XXXSP)
32K bytes (M37225M8-XXXSP)
48K bytes (M37225ECSP)
RAM ...................... 1024 bytes (M37225M6-XXXSP,
M37225M8-XXXSP)
2048 bytes (M37225ECSP)
(*ROM correction memory included)
G
Minimum instruction execution time
.........................................0.5
μ
s (at 8 MHz oscillation frequency)
G
Power source voltage ................................................. 5 V
±
10 %
G
Subroutine nesting .............................................128 levels (Max.)
G
Interrupts....................................................... 16 types, 16 vectors
G
8-bit timers .................................................................................. 4
G
Programmable I/O ports (Ports P0, P1, P2, P3
0
–P3
2
, P3
5
) ..... 28
G
Input ports (Ports P3
3
, P3
4
, P5
0
, P5
1
) ........................................ 4
G
Output ports (Ports P5
2
–P5
5
) ..................................................... 4
G
12 V withstand ports ................................................................... 6
G
LED drive ports ........................................................................... 4
G
Serial I/O ............................................................8-bit
1 channel
G
Multi-master I
2
C-BUS interface .............................. 1 (2 systems)
G
A-D converter (8-bit resolution)....................................8 channels
G
PWM output circuit........................................ 14-bit
2, 8-bit
6
G
In operating ......................................................................165 mW
(at V
CC
= 5.5V, 8 MHz oscillation frequency, and OSD on)
G
ROM correction function ................................................ 3 vectors
G
Immediate return mode from wait state
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37225M6-XXXSP, M37225M8-XXXSP
M37225ECSP
MITSUBISHI MICROCOMPUTERS
G
OSD function
Display characters ............................................... 24 characters
2 lines
(It is possible to display 3 lines or more by software)
Kinds of characters ......... 381 kinds
Character display area
16
20 dots
Kinds of character sizes..............................Block display: 3 kinds
SPRITE display: 1 kinds
Kinds of character colors. ................................. 8 colors (R, G, B)
Coloring unit................... character, character background, raster
Display position
Horizontal: 64 levels
Vertical :255 levels
Attribute ........ Border (all-bordered, shadow-bordered), BUTTON
SPRITE display function
Wallpaper function
Window function
Corresponding to bi-scan mode
3. APPLICATION
TV
Rev. 1.1
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