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Numéro de référence | M37221EF-xxxSP | ||
Description | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | ||
Fabricant | Mitsubishi Electric Semiconductor | ||
Logo | |||
MITSUBISHI MICROCOMPUTERS
M37221EF-XXXSP,M37221EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
DESCRIPTION
The M37221EF-XXXSP and M37221EFSP are single-chip microcom-
puters designed with CMOS silicon gate technology. They are housed
in a 42-pin shrink plastic molded DIP.
In addition to their simple instruction sets, the ROM, RAM and I/O
addresses are placed on the same memory map to enable easy pro-
gramming.
The M37221EF-XXXSP and M37221EFSP have a PWM output func-
tion and a OSD display function, so it is useful for a channel selection
system for TV.
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FEATURES
• Number of basic instructions ..................................................... 71
• Memory size
ROM ........................................................ 62 K bytes
RAM ....................................................... 1216 bytes
ROM for display ......................................... 8 K bytes
RAM for display .......................................... 96 bytes
• The minimum instruction execution time
......................................... 0.5 µs (at 8 MHz oscillation frequency)
• Power source voltage .................................................. 5 V ± 10 %
• Power dissipation............................................................. 165 mW
(at 8 MHz oscillation frequency, VCC=5.5V, at CRT display)
• Subroutine nesting ....................................... 96 levels (maximum)
• Interrupts ....................................................... 14 types, 14 vectors
• 8-bit timers .................................................................................. 4
• Programmable I/O ports (Ports P0, P1, P2, P30–P32) .............. 27
• Input ports (Ports P33, P34) ......................................................... 2
• Output ports (Ports P52–P55) ...................................................... 4
• 12 V withstand ports .................................................................... 6
• LED drive ports ........................................................................... 4
• Serial I/O ............................................................ 8-bit ! 1 channel
• Multi-master I2C-BUS interface ............................... 1 (2 systems)
• A-D comparator (6-bit resolution) ................................ 6 channels
• D-A converter (6-bit resolution) ................................................... 2
• PWM output circuit ......................................... 14-bit ! 1, 8-bit ! 6
• ROM correction function ........................................... 32 bytes ! 2
PIN CONFIGURATION (TOP VIEW)
HSYNC
VSYNC
P00/PWM0
P01/PWM1
P02/PWM2
P03/PWM3
P04/PWM4
P05/PWM5
P06/INT2/A-D4
P07/INT1
P23/TIM3
P24/TIM2
P25
P26
P27
D-A
P32
CNVSS
XIN
XOUT
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42 P52/R
41 P53/G
40 P54/B
39 P55/OUT1
38 P20/SCLK
37 P21/SOUT
36 P22/SIN
35 P10/OUT2
34 P11/SCL1
33 P12/SCL2
32 P13/SDA1
31 P14/SDA2
30 P15/A-D1/INT3
29 P16/A-D2
28 P17/A-D3
27 P30/A-D5/DA1
26 P31/A-D6/DA2
25 RESET
24 OSC1/P33
23 OSC2/P34
22 VCC
Outline 42P4B
• CRT display function
Number of display characters ................ 24 characters ! 2 lines
(16 lines maximum)
Kinds of characters ..................................................... 256 kinds
Dot structure .......................................................... 12 ! 16 dots
Kinds of character sizes .................................................. 3 kinds
Kinds of character colors (It can be specified by the character)
maximum 7 kinds (R, G, B)
Kinds of character background colors (It can be specified by the character)
maximum 7 kinds (R, G, B)
Kinds of raster colors (maximum 7 kinds)
Display position
Horizontal .................................................................. 64 levels
Vertical .................................................................... 128 levels
Bordering (horizontal and vertical)
APPLICATION
TV
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Pages | Pages 30 | ||
Télécharger | [ M37221EF-xxxSP ] |
No | Description détaillée | Fabricant |
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