H8S2245 datasheet(286/818 Pages) RENESAS

Part #	H8S2245

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

PDF	818 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 244 of 772

REJ09B0355-0300

8.7.3

Pin Functions

Modes 1, 2, 3 and 7

In mode 1, 2, 3, and 7, port A pins function as I/O ports. Input or output can be specified for each

pin on an individual bit basis. Setting a PADDR bit to 1 makes the corresponding port A pin an

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

Note:

Modes 2, 3, and 7 cannot be used in the H8S/2240.

Port A pin functions in modes 1, 2, 3, and 7 are shown in figure 8.7.

PA3

PA2

PA1

PA0

(I/O)

Port A

Figure 8.7 Port A Pin Functions (Modes 1, 2, 3, and 7)

Modes 4 and 5

In modes 4 and 5, the lower 4 bits of port A are designated as address outputs automatically.

Port A pin functions in modes 4 and 5 are shown in figure 8.8.

A19

A18

A17

A16

(output)

Port A

Figure 8.8 Port A Pin Functions (Modes 4 and 5)

H8S2245 Datasheet(PDF) 286 Page - Renesas Technology Corp