
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00 Oct 01, 2002 page 6 of 110
REJ03B0134-0100Z
Parameter Functions
Number of basic instructions 71
Number of basic instructions 0.5 µs (the minimum instruction execution time, at 8 MHz oscillation fre
quency)
Instruction execution time 8 MHz (maximum)
Memory size ROM M37221M4H-XXXSP/FP 16K bytes
M37221M6H-XXXSP/FP 24K bytes
M37221M8H-XXXSP/FP 32K bytes
M37221MAH-XXXSP/FP, 40K bytes
M37221EASP/FP
RAM M37221M4H-XXXSP/FP 384 bytes (ROM correction memory included)
M37221M6H-XXXSP/FP 448 bytes (ROM correction memory included)
M37221M8H-XXXSP/FP 576 bytes (ROM correction memory included)
M37221MAH-XXXSP/FP, 704 bytes (ROM correction memory included)
M37221EASP/FP
OSD ROM 8 K bytes
OSD RAM 96 bytes
tInput/Output ports P0 I/O 8-bit 5 1 (N-channel open-drain output structure, can be used as PWM
output pins, INT input pins, A-D input pin)
P10, P15–P17 I/O 4-bit ✕ 1 (CMOS input/output structure, can be used as OSD output pin,
A-D input pins, INT input pin)
P11–P14 I/O 4-bit ✕ 1 (CMOS input/output structure, can be used as multi-master I
2
C-
BUS interface)
P20, P21 I/O 2-bit ✕ 1 (CMOS input/output or N-channel open-drain output structure,
can be used as serial I/O pins)
P22–P27 I/O 6-bit ✕ 1 (CMOS input/output structure, can be used as serial input pin,
timer external clock input pins)
P30, P31 I/O
2-bit ✕ 1 (CMOS input/output or N-channel open-drain output structure, can
be used as A-D input pins, D-A conversion output pins <Only M37221EASP/FP>)
P32 I/O 1-bit ✕ 1 (N-channel open-drain output structure)
P33, P34 Input 2-bit ✕ 1 (can be used as OSD display clock I/O pins)
P52–P55 Output 4-bit ✕ 1 (CMOS output structure, can be used as OSD output pins)
Serial I/O 8-bit ✕ 1
Multi-master I
2
C-BUS interface 1 (2 systems)
A-D comparator 6 channels (6-bit resolution)
D-A converter 2 (6-bit resolution) (Only M37221EASP/FP)
PWM output circuit 14-bit ✕ 1, 8-bit ✕ 6
Timers 8-bit timer ✕ 4
ROM correction function 2 vectors
Subroutine nesting M37221M4H/M6H-XXXSP/FP 96 levels (maximum)
M37221M8H/MAH-XXXSP/FP, 128 levels (maximum)
M37221EASP/FP
Interrupt <14 sources>
INT external interrupt ✕ 3, Internal timer interrupt ✕ 4, Serial I/O interrupt ✕
1,
OSD interrupt ✕ 1, Multi-master I
2
C-BUS interface interrupt ✕ 1, f(XIN)/
4096
interrupt ✕ 1, VSYNC interrupt ✕ 1, BRK interrupt ✕ 1, Reset ✕ 1
Clock generating circuit 2 built-in circuits (externally connected a ceramic resonator or a quartz-
crystal oscillator)
6. PERFORMANCE OVERVIEW
Table 6.1 Performance Overview
Kommentare zu diesen Handbüchern