H8S2245 datasheet(322/818 Pages) RENESAS

Part #	H8S2245

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

PDF	818 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

322 / 818 page

Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 280 of 772

REJ09B0355-0300

Port G Register (PORTG)

—

Undefined

—

Undefined

—

Undefined

—

PG4

—*

PG3

—*

PG0

—*

PG2

—*

PG1

—*

Bit

Initial value

R/W

Note: * Determined by state of pins PG4 to PG0.

PORTG is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of

output data for the port G pins (PG

4 to PG0) must always be performed on PGDR.

Bits 7 to 5 are reserved; they return an undetermined value if read, and cannot be modified.

If a port G read is performed while PGDDR bits are set to 1, the PGDR values are read. If a port G

read is performed while PGDDR bits are cleared to 0, the pin states are read.

After a power-on reset and in hardware standby mode, PORTG contents are determined by the pin

states, as PGDDR and PGDR are initialized. PORTG retains its prior state after a manual reset,

and in software standby mode.

H8S2245 Datasheet(PDF) 322 Page - Renesas Technology Corp