MB90F482 datasheet(30/113 Pages) FUJITSU

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MB90480/485 Series

(3) Port Input Resistance Registers

These registers control the use of pull-up resistance in input mode.

0 : No pull-up resistance in input mode.

1 : With pull-up resistance in input mode.

In output mode, these registers have no significance (no pull-up resistance) . Input/output mode settings are

controlled by the port direction (DDR) registers.

In case of a stop (SPL

= 1) , no pull-up resistance is applied (high impedance) . This function is prohibited when

an external bus is used. Do not write to these registers.

(4) Port Output Pin Registers

*1 : The value is set to “

” on MB90485 series only.

*2 : The initial value of this bit is “XX000000B” on MB90485 series only.

These registers control open drain settings in output mode.

0 : Standard output port functions in output mode.

1 : Open drain output port in output mode.

In input mode these registers have no significance (Hi-Z output) . Input/output mode settings are controlled by

direction (DDR) registers. This function is prohibited when an exteral bus is used. Do not write to these registers.

(5) Analog Input Enable Register

This resister controls the port 6 pins as follows.

0 : Port input/output mode.

1 : Analog input mode. The default value at reset is all “1”.

(6) Up-down Timer Input Enable Register

This register controls the port 3 pins as follows.

0 : Port input mode.

1 : Up/down timer input mode.The default value at reset is “0”.

The MB90480/485 series uses the following setting values : UDE0 : P30/AIN0, UDE1 : P31/BIN0/UDE2 : P32/

ZIN0,

UDE3 : P33/AIN1, UDE4 : P34/BIN1, UDE5 : P35/

ZIN1

RDR0

Initial value

Access

Address : 00001CH

00000000B

R/W

RDR1

Address : 00001DH

00000000B

R/W

RD06

RD07

RD05

RD04

RD03

RD02

RD01

RD00

RD16

RD17

RD15

RD14

RD13

RD12

RD11

RD10

ODR7

Initial value

Access

Address : 00001EH

00000000B*2

R/W

ODR4

Address : 00001BH

00000000B

R/W

OD75

OD74

OD73

OD72

OD71

OD70

OD76*1

OD77*1

OD46

OD47

OD45

OD44

OD43

OD42

OD41

OD40

ADER

Initial value Access

Address : 00001FH

11111111B

R/W

ADE6

ADE7

ADE5

ADE4

ADE3

ADE2

ADE1

ADE0

UDER

Initial value

Access

Address : 00000BH

XX000000B

R/W



UDE5

UDE4

UDE3

UDE2

UDE1

UDE0

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