R5F2L3ACBNFP datasheet(87/848 Pages) RENESAS

87 / 848 page

5. Resets

REJ09B0441-0010 Rev.0.10

Jul 30, 2008

Page 51 of 809

Under development Preliminary specification

Specifications in this manual are tentative and subject to change.

R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,

R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group

5.1

Registers

5.1.1

Processor Mode Register 0 (PM0)

Set the PRC1 bit in the PRCR register to 1 (write enabled) before rewriting the PM0 register.

5.1.2

Reset Source Determination Register (RSTFR)

Notes:

1. The CWR bit is set to 0 (cold start-up) after power-on, voltage monitor 0 reset, or exit from power-off mode. This

bit remains unchanged at a hardware reset, software reset, or watchdog timer reset.

2. When 1 is written to the CWR bit by a program, it is set to 1. (Writing 0 does not affect this bit.)

3. When the VW0C0 bit in the VW0C register is set to 0 (voltage monitor 0 reset disabled), the CWR bit value is

undefined.

4. A hardware reset or an exit from power-off mode is detected.

Address 0004h

Bit

b7b6b5

b4b3b2

b1b0

Symbol

——

PM03

———

After Reset

000

Bit

Symbol

Bit Name

Function

R/W

—

Reserved bits

Set to 0.

R/W

—

PM03

Software reset bit

Setting this bit to 1 resets the MCU. When read, the

content is 0.

R/W

—

Nothing is assigned. If necessary, set to 0. When read, the content is 0.

—

Address 000Bh

Bit

b7b6b5

b4b3b2

b1b0

Symbol

—

WDR

SWR

HWR

CWR

After Reset

(Note 1)

Bit

Symbol

Bit Name

Function

R/W

CWR

Cold start-up/warm start-up

determine flag (2, 3)

0: Cold start-up

1: Warm start-up

R/W

HWR

Hardware reset detect flag (4)

0: Not detected

1: Detected

SWR

Software reset detect flag

0: Not detected

1: Detected

WDR

Watchdog timer reset detect flag

0: Not detected

1: Detected

—

Reserved bits

When read, the content is undefined.

—

R5F2L3ACBNFP Datasheet(PDF) 87 Page - Renesas Technology Corp

R5F2L3ACBNFP Datasheet(HTML) 87 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL