M30620FCAFP datasheet(189/615 Pages) RENESAS

189 / 615 page

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Programmable I/O Port

1-170

Figure 1.20.8. Pull-up control register

Pull-up control register 0 (Note)

Symbol

Address

When reset

PUR0

03FC16

0016

Bit name

Function

Bit symbol

PU00

P00 to P03 pull-up

PU01

P04 to P07 pull-up

PU02

P10 to P13 pull-up

PU03

P14 to P17 pull-up

PU04

P20 to P23 pull-up

PU05

P24 to P27 pull-up

PU06

P30 to P33 pull-up

PU07

P34 to P37 pull-up

The corresponding port is pulled

high with a pull-up resistor

0 : Not pulled high

1 : Pulled high

Pull-up control register 1

Symbol

Address

When reset

PUR1

03FD16

0016 (Note 2)

Bit name

Function

Bit symbol

PU10

P40 to P43 pull-up (Note 3)

PU11

P44 to P47 pull-up

PU12

P50 to P53 pull-up (Note 3)

PU13

P54 to P57 pull-up

PU14

P60 to P63 pull-up

PU15

P64 to P67 pull-up

PU16

P72 to P73 pull-up (Note 1)

PU17

P74 to P77 pull-up

The corresponding port is pulled

high with a pull-up resistor

0 : Not pulled high

1 : Pulled high

Note 1: Since P70 and P71 are N-channel open drain ports, pull-up is not available for them.

Note 2: When the VCC level is being impressed to the CNVSS terminal, this register becomes

to 0216 when reset (PU11 becomes to “1”).

Pull-up control register 2

Symbol

Address

When reset

PUR2

03FE16

0016

Bit name

Function

Bit symbol

PU20

P80 to P83 pull-up

PU21

P84 to P87 pull-up

(Except P85)

PU22

P90 to P93 pull-up

PU23

P94 to P97 pull-up

PU24

P100 to P103 pull-up

PU25

P104 to P107 pull-up

Nothing is assigned.

In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.

The corresponding port is pulled

high with a pull-up resistor

0 : Not pulled high

1 : Pulled high

Note 3: In memory expansion and microprocessor mode, the content of these bits can be

changed, but the pull-up resistance is not connected.

Note : In memory expansion and microprocessor mode, the content of this register

can be changed, but the pull-up resistance is not connected.

M30620FCAFP Datasheet(PDF) 189 Page - Renesas Technology Corp

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