H8SSLASH2218 datasheet(278/750 Pages) RENESAS

Il numero della parte	H8S/2218

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

PDF	750 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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Section 8 I/O Ports

Rev.6.00 Jun. 03, 2008 Page 230 of 698

REJ09B0074-0600

8.4.3

Port 7 Register (PORT7)

PORT7 indicates the pin states of the port 7.

Bit

Bit Name

Initial Value

R/W

Description

P77

P76

P75

⎯*

⎯

(H8S/2218 Group)

Reserved

These bits are undefined and cannot be modified.

(H8S/2212 Group)

If P7DDR bits are set to 1, the P7DR value is read. If

P7DDR bits are cleared to 0, the pin states are read.

P74

⎯*

(H8S/2218 Group)

If the port 7 is read while P7DDR bits are set to 1, the

P7DR value is read. If the port 7 is read while P7DDR

bits are cleared to 0, the pin states are read.

(H8S/2212 Group)

Reserved

This bit is undefined and cannot be modified.

3, 2

⎯

Undefined

⎯

Reserved

These bits are undefined and cannot be modified.

P71

P70

⎯*

(H8S/2218 Group)

If the port 7 is read while P7DDR bits are set to 1, the

P7DR value is read. If the port 7 is read while P7DDR

bits are cleared to 0, the pin states are read.

(H8S/2212 Group)

Reserved

These bits are undefined and cannot be modified.

Note: * Determined by the states of pins P77 to P74, P71, and P70.

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