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PDF M37273EF8SP Data sheet ( Hoja de datos )

Número de pieza M37273EF8SP
Descripción SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
Fabricantes Mitsubishi 
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MITSUBISHI MICROCOMPUTERS
M37273M8–XXXSP, M37273MF–XXXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
1. DESCRIPTION
The M37273M8-XXXSP and M37273MF-XXXSP are single-chip mi-
crocomputers designed with CMOS silicon gate technology. They
have a OSD, data slicer, and I2C-BUS interface, so it is useful for a
channel selection system for TV with a closed caption decoder.
The features of the M37273E8SP and M37273EFSP are similar to
those of the M37273M8-XXXSP and M37273MF-XXXSP except that
the chip has a built-in PROM which can be written electrically. The
difference between M37273M8-XXXSP and M37273MF-XXXSP are
the ROM size and RAM size. Accordingly, the following descriptions
will be for the M37273M8-XXXSP.
2. FEATURES
qNumber of basic instructions .................................................... 71
qMemory size
ROM .............. 32K bytes
(M37273M8-XXXSP, M37273E8SP)
60K bytes
(M37273MF-XXXSP, M37273EFSP)
RAM ............... 1152 bytes
(M37273M8-XXXSP, M37273E8SP)
1472 bytes
(M37273MF-XXXSP, M37273EFSP)
(*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, P30, P31) ............. 26
qInput ports (Ports P50, P51) ........................................................ 2
qOutput ports (Ports P52–P57,P6) .............................................. 14
q12 V withstand ports ................................................................... 6
qLED drive ports ........................................................................... 4
qSerial I/O ............................................................ 8-bit ! 1 channel
qMulti-master I2C-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 ......................................................... 165 mW
(at VCC = 5.5V, 8 MHz oscillation frequency, OSD on, and Data
slicer on)
In low-speed mode ......................................................... 0.33 mW
(at VCC = 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
3. APPLICATION
TV with a closed caption decoder
Rev. 1.0

1 page




M37273EF8SP pdf
MITSUBISHI MICROCOMPUTERS
M37273M8–XXXSP, M37273MF–XXXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
6. PERFORMANCE OVERVIEW
Table 6.1 Performance Overview
Parameter
Number of basic instructions
Instruction execution time
Clock frequency
Memory size
Input/Output
ports
ROM M37273M8-XXXSP, M37273E8SP
M37273MF-XXXSP, M37273EFSP
RAM M37273M8-XXXSP, M37273E8SP
M37273MF-XXXSP, M37273EFSP
OSD ROM
OSD RAM
P0 I/O
P10–P17
I/O
P20–P27
I/O
P30, P31
P50, P51
P52–P55,P6
Serial I/O
Multi-master I2C-BUS interface
A-D comparator
PWM output circuit
Timers
ROM correction function
Subroutine nesting
Interrupt
I/O
Input
Output
Clock generating circuit
Data slicer
Functions
71
0.5 µs (the minimum instruction execution time, at 8 MHz oscillation fre-
quency)
8 MHz (maximum)
32K bytes
60K bytes
1152 bytes (ROM correction memory included)
1472 bytes (ROM correction memory included)
10K bytes
128 bytes
8-bit ! 1 (N-channel open-drain output structure, can be used as PWM
output pins, INT input pins, A-D input pin)
8-bit ! 1 (CMOS input/output structure, however, N-channel open-drain
output structure, when P11–P14 are used as multi-master I2C-BUS inter-
face, can be used as OSD output pin, A-D input pins, INT input pin, multi-
master I2C-BUS interface)
8-bit ! 1 (P2 is CMOS input/output structure, however, N-channel open-
drain output structure when P20 and 21 are used as serial output, can be
used as serial input/output pins, timer external clock input pins, OSD clock
input/output pin, sub-clock input/output pins)
2-bit ! 1 (CMOS input/output or N-channel open-drain output structure,
can be used as A-D input pins)
2-bit ! 1 (can be used as OSD input pins)
14-bit ! 1 (CMOS output structure, can be used as OSD output pins)
8-bit ! 1
1 (2 systems)
6 channels (6-bit resolution)
8-bit ! 6
8-bit timer ! 6
2 vectors
128 levels (maximum)
<17 types>
INT external interrupt ! 3, Internal timer interrupt ! 6, Serial I/O interrupt !
1, OSD interrupt ! 1, Multi-master I2C-BUS interface interrupt ! 1, Data
slicer interrupt ! 1, f(XIN)/4096 interrupt ! 1, VSYNC interrupt ! 1, BRK
instruction interrupt ! 1, reset ! 1
2 built-in circuits (externally connected to a ceramic resonator or a quartz-
crystal oscillator)
Built-in
Rev. 1.0
5

5 Page





M37273EF8SP arduino
MITSUBISHI MICROCOMPUTERS
M37273M8–XXXSP, M37273MF–XXXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
8. FUNCTIONAL DESCRIPTION
8.1 CENTRAL PROCESSING UNIT (CPU)
This microcomputer uses the standard 740 Family instruction set.
Refer to the table of 740 Family addressing modes and machine
instructions or the SERIES 740 <Software> User’s Manual for de-
tails on the instruction set.
Machine-resident 740 Family instructions are as follows:
The FST, SLW instruction cannot be used.
The MUL, DIV, WIT and STP instructions can be used.
8.1.1 CPU Mode Register
The CPU mode register contains the stack page selection bit and
internal system clock selection bit. The CPU mode register is allo-
cated at address 00FB16.
CPU Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
1 1 0 0 CPU mode register (CM) [Address 00FB16]
B Name
0, 1 Processor mode bits
(CM0, CM1)
Functions
After reset R W
b1 b0
0 0: Single-chip mode
0 1:
1 0: Not available
1 1:
0 RW
2 Stack page selection 0: 0 page
bit (CM2) (See note) 1: 1 page
1 RW
3, 4 Fix these bits to “1.”
1 RW
5 XCOUT drivability
selection bit (CM5)
0: LOW drive
1: HIGH drive
6 Main Clock (XIN–XOUT) 0: Oscillating
stop bit
1: Stopped
(CM6)
1 RW
0 RW
7 Internal system clock 0: XIN–XOUT selected
0 RW
selection bit
(high-speed mode)
(CM7)
1: XCIN–XCOUT selected
(high-speed mode)
Note: This bit is set to “1” after the reset release.
Fig. 8.1.1 CPU Mode Register
Rev. 1.0
11

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