HD64F36049 datasheet(174/562 Pages) RENESAS

Part #	HD64F36049

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Tiny Series

PDF	562 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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174 / 562 page

Section 9 I/O Ports

Rev. 3.00 Mar. 15, 2006 Page 142 of 526

REJ09B0060-0300

Port 9 has the following registers.

• Port control register 9 (PCR9)

• Port data register 9 (PDR9)

9.8.1

Port Control Register 9 (PCR9)

PCR9 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 9.

Bit

Bit Name

Initial

Value

R/W

Description

PCR97

PCR96

PCR95

PCR94

PCR93

PCR92

PCR91

PCR90

When each of the port 9 pins P97 to P90 functions as a

general I/O port, setting a PCR9 bit to 1 makes the

corresponding pin an output port, while clearing the bit

to 0 makes the pin an input port.

9.8.2

Port Data Register 9 (PDR9)

PDR9 is a general I/O port data register of port 9.

Bit

Bit Name

Initial

Value

R/W

Description

P97

P96

P95

P94

P93

P92

P91

P90

R/W

PDR9 stores output data for port 9 pins.

If PDR9 is read while PCR9 bits are set to 1, the values

stored in PDR9 are read. If PDR9 is read while PCR9

bits are cleared to 0, the pin states are read regardless

of the value stored in PDR9.

HD64F36049 Datasheet(PDF) 174 Page - Renesas Technology Corp

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