H8SSLASH2224 datasheet(190/1071 Pages) RENESAS

Il numero della parte	H8S/2224

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	1071 Pages

Scroll/Zoom	100%

Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

Logo

190 / 1071 page

Section 3 MCU Operating Modes

Rev. 5.00 Aug 08, 2006 page 104 of 982

REJ09B0054-0500

3.2

The following registers are related to the operating mode.

• Mode control register (MDCR)

• System control register (SYSCR)

3.2.1

Mode Control Register (MDCR)

MDCR is used to monitor the current operating mode of this LSI.

Bit

Bit Name

Initial Value R/W

Description

7—

—

Reserved

This bit is always read as 1 and cannot be modified.

6 to 3

—

All 0

—

Reserved

These bits are always read as 0 and cannot be

modified.

MDS2

MDS1

MDS0

—*

Mode Select 2 to 0

These bits indicate the input levels at pins MD2 to

MD0 (the current operating mode). Bits MDS2 to

MDS0 correspond to MD2 to MD0. MDS2 to MDS0

are read-only bits and they cannot be written to. The

mode pin (MD2 to MD0) input levels are latched into

these bits when MDCR is read.

These latches are canceled by a power-on reset, but

maintained at manual reset.

Note:

* Determined by the MD2 to MD0 pin settings.

H8S/2224 Scheda tecnica(PDF) 190 Page - Renesas Technology Corp