H8SSLASH2214 datasheet(393/936 Pages) RENESAS

Il numero della parte	H8S/2214

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

PDF	936 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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Section 9 I/O Ports

Rev.4.00 Sep. 18, 2008 Page 333 of 872

REJ09B0189-0400

(4) Port C MOS Pull-Up Control Register (PCPCR)

PC7PCR

R/W

PC6PCR

R/W

PC5PCR

R/W

PC4PCR

R/W

PC3PCR

R/W

PC0PCR

R/W

PC2PCR

R/W

PC1PCR

R/W

Bit

Initial value :

R/W

PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function

incorporated into port C on a bit-by-bit basis.

PCPCR is valid for port input (modes 6 and 7).

When a PCDDR bit is cleared to 0 (input port setting), setting the corresponding PCPCR bit to 1

turns on the MOS input pull-up for the corresponding pin.

PCPCR is initialized to H'00 by a power-on reset and in hardware standby mode. It retains its

previous state after a manual reset and in software standby mode.

9.9.3

Pin Functions in Each Mode

(1) Modes 4 and 5

In modes 4 and 5, port C pins function as address outputs automatically. Port C pin functions in

modes 4 and 5 are shown in figure 9.9.

A7 (output)

A6 (output)

A5 (output)

A4 (output)

A3 (output)

A2 (output)

A1 (output)

A0 (output)

Port C

Figure 9.9 Port C Pin Functions (Modes 4 and 5)

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