H8SSLASH2224 datasheet(434/1071 Pages) RENESAS

Il numero della parte	H8S/2224

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	1071 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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434 / 1071 page

Section 10 I/O Ports

Rev. 5.00 Aug 08, 2006 page 348 of 982

REJ09B0054-0500

10.10.3 Port E Register (PORTE)

PORTE shows port E pin states. This register cannot be modified.

Bit

Bit Name

Initial Value

R/W

Description

PE7

*

PE6

*

PE5

*

PE4

*

PE3

*

PE2

*

PE1

*

PE0

*

If a port E read is performed while PEDDR bits are set

to 1, the PEDR values are read. If a port E read is

performed while PEDDR bits are cleared to 0, the pin

states are read.

Note:

* Determined by the states of pins PE7 to PE0.

10.10.4 Port E Pull-Up MOS Control Register (PEPCR)

PEPCR controls the on/off state of port E input pull-up MOS.

Bit

Bit Name

Initial Value

R/W

Description

PE7PCR

R/W

PE6PCR

R/W

PE5PCR

R/W

PE4PCR

R/W

PE3PCR

R/W

PE2PCR

R/W

PE1PCR

R/W

PE0PCR

R/W

When a pin is specified as an input port, setting the

corresponding bit to 1 turns on the input pull-up MOS

for that pin.

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