R8C16 datasheet(49/279 Pages) RENESAS

tên linh kiện	R8C16

Giải thích chi tiết về linh kiện	16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / R8C/Tiny SERIES

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R8C/16 Group, R8C/17 Group

7. Processor Mode

Rev.2.10

Jan 19, 2006

Page 36 of 254

REJ09B0169-0210

Figure 7.2

PM1 Register

Processor Mode Register 1

(1)

Symbol

Address

After Reset

PM1

0005h

00h

Bit Symbol

Bit Name

Function

NOTES :

—

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

When read, its content is indeterminate.

Set to “0”

—

(b0)

Reserved Bit

—

(b1)

b7 b6 b5 b4 b3 b2

—

b1 b0

0 : Watchdog Timer Interrupt

1 : Watchdog Timer Reset(2)

—

(b6-b3)

PM12

WDT Interrupt/Reset Sw itch Bit

The PM12 bit is set to “1” by a program (It remains unchanged even if it is set to “0”).

When the CSPRO bit in the CSPR register is set to “1” (selects count source protect mode), the PM12 bit is

automatically set to “1”.

Reserved Bit

Set to “0”

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

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

When read, its content is “0”.

—

(b7)

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