R8C33A datasheet(73/617 Pages) RENESAS

73 / 617 page

R8C/33A Group

6. Voltage Detection Circuit

REJ09B0455-0010 Rev.0.10

Feb 29, 2008

Page 45 of 586

Under development Preliminary specification

Specifications in this manual are tentative and subject to change.

6.2.6

Voltage Monitor 0 Circuit Control Register (VW0C)

Note:

1. The VW0C0 bit is enabled when the VCA25 bit in the VCA2 register is set to 1 (voltage detection 0 circuit

enabled). Set the VW0C0 bit to 0 (disabled) when the VCA25 bit in the VCA2 register is set to 0 (voltage

detection 0 circuit disabled). To set the VW0C0 bit to 1 (enabled), follow the procedure in Table 6.3 Procedure

for Setting Bits Associated with Voltage Monitor 0 Reset

Set the PRC3 bit in the PRCR register to 1 (write enabled) before writing the VW0C register.

Address 0038h

Bit

b7b6

b5b4b3b2

Symbol

—

VW0F1

VW0F0

—

VW0C1

VW0C0

After Reset The LVDAS bit in the OFS register is set to 1.

100

010

After Reset The LVDAS bit in the OFS register is set to 0.

100

011

Bit

Symbol

Bit Name

Function

R/W

VW0C0 Voltage monitor 0 reset enable bit (1)

0: Disabled

1: Enabled

R/W

VW0C1 Voltage monitor 0 digital filter disabled mode

select bit

0: Digital filter enabled mode

(digital filter circuit enabled)

1: Digital filter disabled mode

(digital filter circuit disabled)

R/W

—

Reserved bit

Set to 0.

R/W

—

Reserved bit

When read, the content is undefined.

VW0F0 Sampling clock select bit

b5 b4

0 0: fOCO-S divided by 1

0 1: fOCO-S divided by 2

1 0: fOCO-S divided by 4

1 1: fOCO-S divided by 8

R/W

VW0F1

R/W

—

Reserved bits

Set to 1.

R/W

—

R/W

R8C33A Datasheet(PDF) 73 Page - Renesas Technology Corp

R8C33A Datasheet(HTML) 73 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