7220 datasheet(147/303 Pages) RENESAS

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M37220M3-XXXSP/FP

4.5 Functional description

4-9

7220 Group User’s Manual

4.5 Functional description

Functions of M37220M3-XXXSP/FP are partially different from those of M37221M6-XXXSP/FP. Table 4.5.1

shows the difference between M37220M3-XXXSP/FP and M37221M6-XXXSP/FP.

Table 4.5.1 Difference between M37220M3-XXXSP/FP and M37221M6-XXXSP/FP

Programmable I/O ports

Port P0

Port P1

Port P2

Port P3

Port P5

Interrupts

D-A converter

Multi-master I2C-BUS interface

CRT display function

Number of display characters

Kinds of characters

Kinds of character back

ground colors

Paramater

M37221M6-XXXSP/FP

8 bits

4 bits

There is multi-master I2C-BUS

interface interrupt

Included

1 (2 systems)

24characters ! 2 lines

256 kinds

Possible

(It can be specified by the character.)

Maximum 7 kinds

M37220M3-XXXSP/FP

8 bits

(Functions except port are

partially different.)

8 bits

(Functions except port are

partically different.)

4 bits

No multi-master I2C-BUS

interface interrupt

(Priority level is the same as

M37221M6-XXXSP/FP.)

Included

2 (6-bit resolution)

20 characters ! 2 lines

128 kinds

Not available

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