H8SSLASH2214 datasheet(13/936 Pages) RENESAS

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Rev.4.00 Sep. 18, 2008 Page xiii of lx

REJ09B0189-0400

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Page

Revisions (See Manual for Details)

9.8.2 Register

Configuration

(1) Port B Data

Direction Register

(PBDDR)

323

Description added

... PBDDR cannot be read; if it is, an undefined value will be read.

Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

9.9.2 Register

Configuration

(1) Port C Data

Direction Register

(PCDDR)

331

Description added

... PCDDR cannot be read; if it is, an undefined value will be read.

Setting a PCDDR bit to 1 makes the corresponding port C pin an

output pin, while clearing the bit to 0, makes the pin an input pin.

Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

9.10.2 Register

Configuration

(1) Port D Data

Direction Register

(PDDDR)

338

Description added

... PDDDR cannot be read; if it is, an undefined value will be read.

Setting a PDDDR bit to 1 makes the corresponding port C pin an

output pin, while clearing the bit to 0, makes the pin an input pin.

Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

9.11.2 Register

Configuration

(1) Port E Data

Direction Register

(PEDDR)

343

Description added

... PEDDR cannot be read; if it is, an undefined value will be read.

Setting a PEDDR bit to 1 makes the corresponding port C pin an

output pin, while clearing the bit to 0, makes the pin an input pin.

Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

9.12.2 Register

Configuration

(1) Port F Data

Direction Register

(PFDDR)

349

Description added

... PFDDR cannot be read; if it is, an undefined value will be read.

Setting a PFDDR bit to 1 makes the corresponding port C pin an

output pin, while clearing the bit to 0, makes the pin an input pin.

Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

9.13.2 Register

Configuration

(1) Port G Data

Direction Register

(PGDDR)

354

Description added

... Also, bits 7 to 5 are reserved, and will return an undefined value

if read. Setting a PGDDR bit to 1 makes the corresponding port C

pin an output pin, while clearing the bit to 0, makes the pin an

input pin. Since this register is a write-only register, do not use bit

manipulation instructions to write to this register. See section

2.10.4, Access Methods for Registers with Write-Only Bits.

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