H8SLASH3028F datasheet(282/923 Pages) RENESAS

Part #	H8/3028F

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

PDF	923 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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282 / 923 page

Rev. 2.00, 09/03, page 252 of 890

P1DDR is initialized to H'FF in modes 1 to 4, and to H'00 in modes 5 to 7, by a reset and in

hardware standby mode. In software standby mode it retains its previous setting. Therefore, if a

transition is made to software standby mode while port 1 is functioning as an input/output port and

a P1DDR bit is set to 1, the corresponding pin maintains its output state.

Port 1 Data Register (P1DR): P1DR is an 8-bit readable/writable register that stores port 1

output data. When port 1 functions as an output port, the value of this register is output. When

this register is read, the pin logic level is read for bits for which the P1DDR setting is 0, and the

P1DR value is read for bits for which the P1DDR setting is 1.

Bit

Initial value

Read/Write

R/W

Port 1 data 7 to 0

These bits store data for port 1 pins

R/W

P1DR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it

retains its previous setting.

H8/3028F Datasheet(PDF) 282 Page - Renesas Technology Corp