M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
REJ03B0134-0100Z
Rev.1.00
Oct 01, 2002
1. DESCRIPTION
The M37221M4H/M6H/M8H/MAH-XXXSP/FP are single-chip micro-
computers designed with CMOS silicon gate technology. They have
a OSD, I
2
C-BUS interface, and PWM, making them perfect for TV
channel selection system.
The M37221EASP/FP have a built-in PROM that can be written elec-
trically.
●OSD
function
Display characters .................................... 24 characters 5 2 lines
(3 lines or more can be displayed 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
2. FEATURES
●
Number
of basic instructions ..................................................... 71
●
Memory size
ROM ............. 16K bytes (M37221M4H-XXXSP/FP)
24K bytes (M37221M6H-XXXSP/FP)
32K bytes (M37221M8H-XXXSP/FP)
40K bytes (M37221MAH-XXXSP/FP, M37221EASP/FP)
RAM ............. 384 bytes (M37221M4H-XXXSP/FP)
448 bytes (M37221M6H-XXXSP/FP)
576 bytes (M37221M8H-XXXSP/FP)
704 bytes (M37221MAH-XXXSP/FP, M37221EASP/FP)
(ROM correction memory included)
●
The minimum instruction execution time
......................................... 0.5
µs
(at 8 MHz oscillation frequency)
●
Power source voltage .................................................. 5 V ± 10 %
●
Subroutine nesting
maximum 96 levels (M37221M4H/M6H-XXXSP/FP)
maximum 128 levels (M37221M8H/MAH-XXXSP/FP, M37221EASP/FP)
●
Interrupts ........................................................ 14 types, 14 vectors
●
8-bit timers ................................................................................... 4
●
Programmable I/O ports
(Ports P0, P1, P2, P3
0
–P3
2
) ..................................................... 27
●
Input ports (Ports P3
3
, P3
4
) ......................................................... 2
●
Output ports (Ports P5
2
–P5
5
) ...................................................... 4
●
LED drive ports ............................................................................ 4
●
Serial I/O ............................................................. 8-bit
✕
1 channel
●
Multi-master I
2
C-BUS interface ............................... 1 (2 systems)
●
A-D comparator (6-bit resolution) ................................. 6 channels
●
D-A converter (6-bit resolution) .................................................... 2
Note:
Only M37221EASP/FP has D-A converter.
output circuit .......................................... 14-bit
✕
1, 8-bit
✕
6
●
Power dissipation .............................. High-speed mode : 165 mW
(at V
CC
=5.5V, 8 MHz oscillation frequency, and OSD on)
●
ROM correction function ................................................. 2 vectors
●
PWM
3. APPLICATION
TV
Rev.1.00 Oct 01, 2002
REJ03B0134-0100Z
page 1 of 110
RENESAS [ RENESAS TECHNOLOGY CORP ]
