M37225M6/M8/MA/MC–XXXSP, M37225ECSP
SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
REJ03B0136-0100Z
Rev.1.00
Nov 01, 2000
1. DESCRIPTION
ꢀOSD function
The M37225M6/M8/MA/MC–XXXSP are single-chip microcomput-
Display characters ............................................... 24 characters ꢀ 2 lines
(It is possible to display 3 lines or more by software)
ers designed with CMOS silicon gate technology. They have a OSD,
Kinds of characters ......... 381 kinds
2
I C-BUS interface, PWM output, and 12 V withstand, so it is useful
Character display area 16 ꢀ 20 dots
for a channel selection system for TV.
Kinds of character sizes.............................. Block display: 3 kinds
SPRITE display: 1 kinds
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 differences amang M37225M6/M8/
MA/MC–XXXSP are the ROM, RAM size. Accordingly, the following
descriptions will be for the M37225M6-XXXSP.
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
2. FEATURES
ꢀNumber of basic instructions .................................................... 71
Wallpaper function
ꢀMemory size
Window function
ROM ......... 24K bytes (M37225M6-XXXSP)
Corresponding to bi-scan mode
32K bytes (M37225M8-XXXSP)
40K bytes (M37225MA–XXXSP)
3. APPLICATION
TV
48K bytes (M37225MC–XXXSP, M37225ECSP)
RAM ......... 1024 bytes (M37225M6/M8-XXXSP)
2048 bytes (M37225MA/MC–XXXSP, M37225ECSP)
(ꢀ ROM correction memory included)
ꢀMinimum instruction execution time
......................................... 0.5 µs (at 8 MHz oscillation frequency)
ꢀPower source voltage ................................................. 5 V ± 10 %
ꢀSubroutine nesting ............................................. 128 levels (Max.)
ꢀInterrupts ....................................................... 16 types, 16 vectors
ꢀ8-bit timers .................................................................................. 4
ꢀProgrammable I/O ports (Ports P0, P1, P2, P30–P32, P35) ..... 28
ꢀInput ports (Ports P33, P34, P50, P51) ........................................ 4
ꢀOutput ports (Ports P52–P55) ..................................................... 4
ꢀ12 V withstand ports ................................................................... 6
ꢀLED drive ports ........................................................................... 4
ꢀSerial I/O ............................................................ 8-bit ꢀ 1 channel
2
ꢀMulti-master I C-BUS interface .............................. 1 (2 systems)
ꢀA-D converter (8-bit resolution) .................................... 8 channels
ꢀPWM output circuit ........................................ 14-bit ꢀꢀ2, 8-bit ꢀ 6
ꢀPower dissipation
In operating ...................................................................... 165 mW
(at VCC = 5.5V, 8 MHz oscillation frequency, and OSD on)
ꢀROM correction function ................................................ 3 vectors
ꢀImmediate return mode from wait state
Rev.1.00 Nov 01, 2000 page 1 of 124
REJ03B0136-0100Z