M37220M3 Datasheet, PDF (1/53 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37220M3-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
DESCRIPTION
The M37220M3-XXXSP is a single-chip microcomputer designed with
CMOS silicon gate technology. It is 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 M37220M3-XXXSP has a PWM output function and a OSD dis-
play function, so it is useful for a channel selection system for TV.
FEATURES
• ^{Number of basic instructions ..................................................... 71}
• ^{Memory size}
ROM ........................................................ 12 K bytes
RAM ......................................................... 256 bytes
ROM for display......................................... 4 K bytes
RAM for display .......................................... 80 bytes
• ^{The minimum instruction execution time}
.......................................... 0.5µs (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 ....................................................... 13 types, 13 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}
• ^{A-D comparator (6-bit resolution) ................................ 6 channels}
• ^{D-A converter (6-bit resolution) ................................................... 2}
• ^{PWM output circuit ......................................... 14-bit ! 1, 8-bit ! 6}
PIN CONFIGURATION (TOP VIEW)
HSYNC
1
VSYNC
2
P00/PWM0
3
P01/PWM1
4
P02/PWM2
5
P03/PWM3
6
P04/PWM4
7
P05/PWM5
8
P06/INT2/A-D4
9
P07/INT1
10
P23/TIM3
11
P24/TIM2
12
P25
13
P26
14
P27
15
D-A
16
P32
17
CNVSS
18
XIN
19
XOUT
20
VSS
21
42
P52/R
41
P53/G
40
P54/B
39
P55/OUT
38
P20/SCLK
37
P21/SOUT
36
P22/SIN
35
P10
34
P11
33
P12
32
P13
31
P14
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 ..................................................... 128 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 raster colors (maximum 7 kinds)
Display position
Horizontal .................................................................. 64 levels
Vertical .................................................................... 128 levels
Bordering (horizontal and vertical)
APPLICATION
TV