To all our customers
Regarding the change of names mentioned in the document, such as Mitsubishi
Electric and Mitsubishi XX, to Renesas Technology Corp.
The semiconductor operations of Hitachi and Mitsubishi Electric were transferred to Renesas
Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog
and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)
Accordingly, although Mitsubishi Electric, Mitsubishi Electric Corporation, Mitsubishi
Semiconductors, and other Mitsubishi brand names are mentioned in the document, these names
have in fact all been changed to Renesas Technology Corp. Thank you for your understanding.
Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been
made to the contents of the document, and these changes do not constitute any alteration to the
contents of the document itself.
Note : Mitsubishi Electric will continue the business operations of high frequency & optical devices
and power devices.
Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
MITSUBISHI MICROCOMPUTERS
M37273MFH–XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
1. DESCRIPTION
The M37273MFH-XXXSP is single-chip microcomputers designed
with CMOS silicon gate technology. The M37273MFH-XXXSP has a
OSD, data slicer, and I
2
C-BUS interface, so it is useful for a channel
selection system for TV with a closed caption decoder.
M37273EFSP is used at the time of program creation. Please refer
to Data Sheet of “M37273M8-XXXSP, M37273MFH-XXXSP,
M37273E8SP, M37273EFSP”.
3. APPLICATION
TV with a closed caption decoder
2. FEATURES
qNumber
of basic instructions .................................................... 71
qMemory
size
ROM ......................................................... 60K bytes
RAM ........................................................ 1472 bytes
(*ROM correction memory included)
qMinimum
instruction execution time
......................................... 0.5
µs
(at 8 MHz oscillation frequency)
qPower
source voltage ................................................. 5 V ± 10 %
qSubroutine
nesting ............................................. 128 levels (Max.)
qInterrupts
....................................................... 17 types, 16 vectors
q8-bit
timers .................................................................................. 6
qProgrammable
I/O ports (Ports P0, P1, P2, P3
0
, P3
1
) ............. 26
qInput
ports (Ports P5
0
, P5
1
) ........................................................ 2
qOutput
ports (Ports P5
2
–P5
7
,P6) .............................................. 14
q12
V withstand ports ................................................................... 6
qLED
drive ports ........................................................................... 4
qSerial
I/O ............................................................ 8-bit
✕
1 channel
qMulti-master
I
2
C-BUS interface .............................. 1 (2 systems)
qA-D
comparator (6-bit resolution) ................................ 6 channels
qPWM
output circuit ......................................................... 8-bit
✕
6
qPower
dissipation
In high-speed mode ...................................................... 137.5 mW
(at V
CC
= 5.5V, 8 MHz oscillation frequency, OSD on, and Data
slicer on)
In low-speed mode ......................................................... 0.33 mW
(at V
CC
= 5.5V, 32 kHz oscillation frequency)
qROM
correction function ................................................ 2 vectors
qClosed
caption data slicer
qOSD
function
Display characters ................................... 32 characters
✕
2 lines
(It is possible to display 3 lines or more by software)
Kinds of characters ........................................................ 254 kinds
Character display area ............................ CC mode: 16
✕
26 dots
OSD mode: 16
✕
20 dots
Kinds of character sizes ..................................... CC mode: 1 kind
OSD mode: 8 kinds
Kinds of character colors .................................. 8 colors (R, G, B)
Coloring unit ................... character, character background, raster
Display position
Horizontal: 128 levels
Vertical: 512 levels
Attribute ........................................................................................
CC mode: smooth italic, underline, flash, automatic solid space
OSD mode: border
Smoth roll-up
Window function
Rev. 1.0
MITSUBISHI MICROCOMPUTERS
M37273MFH–XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
TABLE OF CONTENTS
1. DESCRIPTION ............................................................... 1
2. FEATURES .................................................................... 1
3. APPLICATION ................................................................ 1
4. PIN CONFIGURATION .................................................. 3
5. FUNCTIONAL BLOCK DIAGRAM ................................. 4
6. PERFORMANCE OVERVIEW ....................................... 5
7. PIN DESCRIPTION ........................................................ 7
8. FUNCTIONAL DESCRIPTION ..................................... 11
8.1 CENTRAL PROCESSING UNIT (CPU) .......... 11
8.2 MEMORY ........................................................ 12
8.3 INTERRUPTS ................................................. 18
8.4 TIMERS .......................................................... 23
8.5 SERIAL I/O ..................................................... 26
8.6 MULTI-MASTER I2C-BUS INTERFACE ......... 29
8.7 PWM OUTPUT FUNCTION ............................ 42
8.8 A-D COMPARATOR ........................................ 46
8.9 ROM CORRECTION FUNCTION ................... 48
8.10 DATA SLICER ............................................... 49
8.11 OSD FUNCTIONS ........................................ 60
8.11.1 Display Position .............................. 65
8.11.2 Dot Size .......................................... 69
8.11.3 Clock for OSD ................................. 70
8.11.4 Field Determination Display ............ 71
8.11.5 Memory for OSD ............................. 73
8.11.6 Character color ............................... 77
8.11.7 Character background color ........... 77
8.11.8 OUT1, OUT2 signals ...................... 78
8.11.9 Attribute .......................................... 79
8.11.10 Multiline Display ............................ 84
8.11.11 Automatic Solid Space Function ... 85
8.11.12 Window Function .......................... 86
8.11.13 OSD Output Pin Control ............... 88
8.11.14 Raster Coloring Function .............. 89
8.12 SOFTWARE RUNAWAY DETECT FUNCTION ........ 91
8.13 RESET CIRCUIT .......................................... 92
8.14 CLOCK GENERATING CIRCUIT ................. 93
8.15 DISPLAY OSCILLATION CIRCUIT ............... 96
8.16 AUTO-CLEAR CIRCUIT ............................... 96
8.17 ADDRESSING MODE .................................. 96
8.18 MACHINE INSTRUCTIONS ......................... 96
9. PROGRAMMING NOTES ............................................ 96
10. ABSOLUTE MAXIMUM RATINGS ............................. 97
11. RECOMMENDED OPERATING CONDITIONS ......... 97
12. ELECTRIC CHARACTERISTICS .............................. 98
13. A-D CONVERTER CHARACTERISTICS ................. 100
14. MULTI-MASTER I2C-BUS BUS LINE CHARACTERISTICS ....... 100
15. PROM PROGRAMMING METHOD ......................... 101
16. DATA REQUIRED FOR MASK ORDERS ................ 102
17. APPENDIX ............................................................... 103
18. PACKAGE OUTLINE ............................................... 127
Rev. 1.0
2
MITSUBISHI MICROCOMPUTERS
M37273MFH–XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
4. PIN CONFIGURATION
P5
0
/H
SYNC
P5
1
/V
SYNC
P0
0
/PWM0
P0
1
/PWM1
P5
6
P0
2
/PWM2
P5
7
1
2
3
4
5
6
7
8
9
52
51
50
49
48
47
46
45
44
P5
2
/R
P5
3
/G
P5
4
/B
P5
5
/OUT1
P6
3
P0
3
/PWM3
P6
0
P0
4
/PWM4
P0
5
/PWM5
0
6
/INT2/AD4
P6
1
P0
7
/INT1
P6
2
P2
0
/S
CLK
P6
4
P2
1
/S
OUT
P6
5
M37273MFH-XXXSP
10
11
12
13
14
15
16
17
18
19
20
21
43
42
41
40
39
38
37
36
35
34
33
32
P2
2
/S
IN
P6
6
P1
0
/OUT2
P6
7
P1
1
/SCL1
P1
2
/SCL2
P1
3
/SDA1
P1
4
/SDA2
P1
5
/AD1/INT3
P1
6
/AD2
P1
7
/AD3
P3
0
/AD5
P3
1
/AD6
RESET
P2
6
/OSC1/X
CIN
P2
7
/OSC2/X
COUT
V
CC
P2
3
/TIM3
P2
4
/TIM2
P2
5
NC
HLF
V
HOLD
CV
IN
CNV
SS
X
IN
X
OUT
V
SS
22
23
24
25
26
31
30
29
28
27
52P4B
Note:
19th pin of this version is non-connection pin, but 19th pin of
M37273EFSP is AV
CC
pin.
Fig. 4.1 Pin Configuration (Top View)
Rev. 1.0
3
INT1
INT2
INT3
SDA2
SDA1
SCL2
SCL1
S
IN
S
CLK
S
OUT
PWM5
PWM4
PWM3
PWM2
PWM1
PWM0
AD1— D6
A
14 12 11 10 8 6 4 3
18 17 16 43 45 47
31 32
33 34 35 36 37 38 39 41
40 42 44 46 48 15 13 9
7 5 49 50 51 52 2 1
I/O port P0
I/O port P2
I/O port P1
I/O ports P3
0
, P3
1
Output ports P6
Output ports P5
2
—P
7
5
Output for display Input ports P5
0
-P5
1
Synchronous signal input
OUT1
B
G
R
V
SYNC
H
SYNC
4
V
C C
V
SS
CNV
SS
C
26
23
22
21
20
29
28
27
Clock input Clock output
Pins for data slicer
CV
IN
V
HOLD
HLF
30
X
IN
X
OUT
Reset input
RESET
I/O ports P2
6
, P2
7
Clock input for Clock output for OSD/
OSD/sub-clock input sub-clock output
OSC1/X
CIN
OSC2/X
COUT
24
25
Clock
generating
circuit
Data slicer
Fig. 5.1 Functional Block Diagram of M37273
TIM2
TIM3
Timer count source
selection circuit
Program
counter
5. FUNCTIONAL BLOCK DIAGRAM
Data bus
ROM
correction
circuit
ROM
32 K bytes
Timer 1
T1 (8)
Timer 2
T2 (8)
Timer 3
T3 (8)
PC
L
(8)
RAM
1152 bytes
Progam
counter
PC
H
(8)
Address bus
Timer 4
T4 (8)
Control signal
Instruction
decoder
Instruction
register (8)
Index
register
Index
register
8-bit
arithmetic
and
logical unit
X (8)
Y (8)
Stack
pointer
S (8)
Timer 5
T5 (8)
Timer 6
T6 (8)
Accumulator
A (8)
Processor
status
register
PS (8)
CRT
circuit
A-D
comparator
SI/O
P 2 ( 6)
P3 (2)
Multi-master
I2C-BUS
interface
PWM
P6 (8)
OUT2
P1
0
P 5 ( 8)
MITSUBISHI MICROCOMPUTERS
M37273MFH–XXXSP
P 0 ( 8)
P 1 ( 8)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Rev. 1.0
