MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
4
71
0.5 µs (the minimum instruction execution time, at 8 MHz oscillation fre-
quency)
8 MHz (maximum)
60 K bytes
1024 bytes
14464 bytes
1920 bytes
7-bit ✕ 1 (N-channel open-drain output structure, can be used as PWM
output pins)
1-bit ✕ 1 (CMOS input/output structure)
4-bit ✕ 1 (CMOS input/output structure, can be used as OSD output pin,
INT input pin, serial input pin)
4-bit ✕ 1 (N-channel open-drain output structure, can be used as multi-
master I
2
C-BUS interface)
8-bit ✕ 1 (CMOS input/output structure, can be used as A-D input pins)
2-bit ✕ 1 (CMOS input/output structure)
5-bit ✕ 1 (can be used as A-D input pins, INT input pins, external clock
input pins)
2-bit ✕ 1 (N-channel open-drain output structure when serial I/O is used,
can be used as serial I/O pins)
4-bit ✕ 1 (CMOS output structure, can be used as OSD output)
1-bit ✕ 1 (can be used as sub-clock input pin, OSD clock input pin)
1-bit ✕ 1 (CMOS output structure when LC is oscillating, can be used as
sub-clock output pin, OSD clock output pin)
8-bit ✕ 1
1
4 channels (8-bit resolution)
8-bit ✕ 7
8-bit timer ✕ 6
128 levels (maximum)
1
External interrupt ✕ 3, Internal timer interrupt ✕ 6, Serial I/O interrupt ✕ 1,
OSD interrupt ✕ 1, Multi-master I
2
C-BUS interface interrupt ✕ 1,
Data slicer interrupt ✕ 1, f(XIN)/4092 interrupt ✕ 1, VSYNC interrupt ✕ 1, A-
D conversion interrupt ✕ 1, BRK instruction interrupt ✕ 1
2 built-in circuits (externally connected a ceramic resonator or a quartz-
crystal oscillator)
Built in
Parameter
Functions
FUNCTIONS
Number of basic instructions
Instruction execution time
Clock frequency
Memory size
Input/Output ports
Serial I/O
Multi-master I
2
C-BUS interface
A-D converter
PWM output circuit
Timers
Subroutine nesting
Interrupt interval determination circuit
Interrupt
Clock generating circuit
Data slicer
ROM
RAM
OSD ROM
OSD RAM
P00–P02,
P04–P07
P03
P10, P15–P17
P11–P14
P2
P30, P31
P40–P44
P45, P46
P52–P55
P63
P64
I/O
I/O
I/O
I/O
I/O
I/O
Input
Input
Output
Input
Input
(145 Seiten)
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