H8S2245 datasheet(280/818 Pages) RENESAS

부품명	H8S2245

상세설명	Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series

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제조업체	RENESAS [Renesas Technology Corp]

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Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 238 of 772

REJ09B0355-0300

Port 5 Register (PORT5)

—

Undefined

—

Undefined

—

Undefined

—

Undefined

—

P53

—*

P50

—*

P52

—*

P51

—*

Bit

Initial value

R/W

Note: * Determined by state of pins P53 to P50.

PORT5 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of

output data for the port 5 pins (P5

3 to P50) must always be performed on P5DR.

Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified.

If a port 5 read is performed while P5DDR bits are set to 1, the P5DR values are read. If a port 5

read is performed while P5DDR bits are cleared to 0, the pin states are read.

After a power-on reset and in hardware standby mode, PORT5 contents are determined by the pin

states, as P5DDR and P5DR are initialized. PORT5 retains its prior state after a manual reset, and

in software standby mode.

H8S2245 데이터시트(PDF) 280 Page - Renesas Technology Corp