7477 datasheet(240/354 Pages) RENESAS

240 / 354 page

2-5

7470/7471/7477/7478 GROUP USER’S MANUAL

APPLICATION

2.1 I/O pins

7470

7471

7477

7478

Control register

Timer 12 mode register (T12M: Address 00F816)

Timer 34 mode register (T34M: Address 00F916)

A-D control register (ADCON: Address 00D916)

A-D control register

Edge polarity selection register (EG: Address 00D416)

Edge polarity selection register

Edge polarity selection register, Timer 12 mode register

Edge polarity selection register, Timer 34 mode register

CPU mode register (CPUM: Address 00FB16)

CPU mode register

7470/7471 group

Serial I/O mode register

(SM: Address 00DC 16)

Serial I/O mode register

2.1.2 Notes on use

When using I/O pins, take the following points into consideration.

(1) Double function ports

Table 2.1.4 shows double function ports. For setting, refer to a structure of each register.

Table 2.1.4 Double function port and control register

P12

P13

P14

P15

P16

P17

P20

P21

P22

P23

P24

P25

P26

P27

P30

P31

P32

P33

P50

P51

Double function port

SRDY

IN0

IN1

IN2

IN3

IN4

IN5

IN6

IN7

INT0

INT1

CNTR0

CNTR1

XCIN

XCOUT

7470/7471 group

SIN

SOUT

CLK

7477/7478 group

RXD

TXD

SCLK

7477/7478 group

Serial I/O control register

(SIOSTS: Address 00E216)

Serial I/O control register

Note: In the 7470/7477 group, P2 is 4 bits of b0 to b3. The 7470/7477 group is not provided with P5.

7477 Datasheet(PDF) 240 Page - Renesas Technology Corp

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