H8SSLASH2224 datasheet(428/1071 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]

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Section 10 I/O Ports

Rev. 5.00 Aug 08, 2006 page 342 of 982

REJ09B0054-0500

10.8.5

Pin Functions

Port C pins also function as address output pin. The values of register and pin functions are shown

below.

• PC7/A7, PC6/A6, PC5/A5, PC4/A4, PC3/A3, PC2/A2, PC1/A1, PC0/A0

The pin functions are switched as shown below according to the combination of operating

mode and the PCnDDR bit.

Operating

mode

Modes 4 and 5

Mode 6

Mode 7

PCnDDR



Pin functions

Address output

PCn input

Address

output pin

PCn input pin

PCn output

Note: n = 7 to 0

10.8.6

Input Pull-Up MOS States in Port C

Port C has a built-in input pull-up MOS function that can be controlled by software. Input pull-up

MOS can be used in modes 6 and 7 and specified as on or off on an individual bit basis.

Table 10.4 summarizes the input pull-up MOS states in port C.

Table 10.4 Input Pull-Up MOS States in Port C

Pin States

Power-on

Reset

Hardware

Standby Mode

Software

Standby Mode

In Other

Operations

Address output (modes 4

and 5) and port output

(modes 6 and 7)

OFF

Port input (modes 6 and 7)

ON/OFF

Legend:

OFF:

Input pull-up MOS is always off.

ON/OFF: On when PCDDR = 0 and PCPCR = 1; otherwise off.

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