R8CSLASH15 datasheet(47/277 Pages) RENESAS

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R8C/14 Group, R8C/15 Group

7. Processor Mode

Rev.2.10

Jan 19, 2006

Page 35 of 253

REJ09B0164-0210

Processor Mode

7.1

Types of Processor Mode

Single-chip mode can be selected as processor mode. Table 7.1 lists Features of Processor Mode.

Figure 7.1 shows the PM0 Register and Figure 7.2 shows the PM1 Register.

Figure 7.1

PM0 Register

Table 7.1

Features of Processor Mode

Processor Mode

Access Area

Pins to which I/O ports are

assigned

Single-Chip Mode

SFR, Internal RAM, Internal ROM All pins are I/O ports or peripheral

function I/O pins

Processor Mode Register 0

(1)

Symbol

Address

After Reset

PM0

0004h

00h

Bit Symbol

Bit Name

Function

NOTES :

b3 b2

—

b1 b0

—

(b2-b0)

b7 b6 b5 b4

Reserved Bit

Set to “0”

Set the PRC1 bit in the PRCR register to “1” (w rite enable) before rew riting to this register.

The microcomputer is reset w hen this bit

is set to “1”. When read, its content is “0”.

—

(b7-b4)

PM03

Softw are Reset Bit

Nothing is assigned. When w rite, set to “0”.

When read, its content is “0”.

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