M32C80 Datasheet, PDF(294/352 Page) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C80 Datasheet, PDF (294/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C/80 Group

22. Programmable I/O Ports

Pull-Up Control Register 0(1)

b7 b6 b5 b4 b3 b2 b1 b0

Symbol

PUR0

Address

03F016

After Reset

0016

Bit

Symbol

Bit Name

Function

RW

PU00

PU01

PU02

P00 to P03 Pull-up

P04 to P07 Pull-up

P10 to P13 Pull-up

Pull-up setting for corresponding port RW

0: Not pulled up

RW

1: Pulled up

RW

PU03 P14 to P17 Pull-up

RW

PU04 P20 to P23 Pull-up

RW

PU05 P24 to P27 Pull-up

RW

PU06 P30 to P33 Pull-up

RW

PU07 P34 to P37 Pull-up

RW

NOTE:

1. Set each bit in the PUR0 register to "0" when ports P0 to P5 become bus control pins in memory

expansion mode and microprocessor mode. When using the ports as I/O ports, pull-up or no

pull-up setting can be selected.

Pull-Up Control Register 1(1)

b7 b6 b5 b4 b3 b2 b1 b0

Symbol

PUR1

Address

03F116

After Reset

XXXX 00002

Bit

Symbol

Bit Name

Function

RW

PU10

PU11

PU12

P40 to P43 Pull-up

P44 to P47 Pull-up

P50 to P53 Pull-up

Pull-up setting for corresponding port RW

0: Not pulled up

RW

1: Pulled up

RW

PU13 P54 to P57 Pull-up

RW

Nothing is assigned. When write, set to "0".

(b7 - b4) When read, its content is indeterminate.

NOTES:

1. Set each bit in the PUR1 register to "0" when ports P0 to P5 become bus control pins in memory

expansion mode and microprocessor mode. When using the ports as I/O ports, pull-up or no pull-up

setting can be selected.

Pull-Up Control Register 2

b7 b6 b5 b4 b3 b2 b1 b0

Symbol

PUR2

Address

03DA16

Bit

Symbol

Bit Name

PU20 P60 to P63 Pull-up

PU21 P64 to P67 Pull-up

PU22 P72 to P73 Pull-up(1)

PU23 P74 to P77 Pull-up

PU24

PU25

P80 to P83 Pull-up

P84 to P87 Pull-up(2)

PU26 P90 to P93 Pull-up

PU27 P94 to P97 Pull-up

NOTES:

1. P70 and P71 cannot be pulled up.

2. P85 cannot be pulled up.

After Reset

0016

Function

RW

Pull-up setting for corresponding port RW

0: Not pulled up

RW

1: Pulled up

RW

RW

RW

RW

RW

RW

Figure 22.13 PUR0 Register, PUR1 Register and PUR2 Register

Rev. 1.00 Nov. 01, 2005 Page 275 of 330

REJ09B0271-0100

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