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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

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

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 ✕

OSD interrupt ✕ 1, Multi-master I

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

1 2 3 4 5 6 7 8 9 10 11 ... 111 112

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