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HD64F2149YV Folha de dados(PDF) 685 Page - Renesas Technology Corp

Nome de Peças HD64F2149YV
Descrição Electrónicos  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD64F2149YV Folha de dados(HTML) 685 Page - Renesas Technology Corp

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Section 19 D/A Converter
Rev. 3.00 Jan 18, 2006 page 657 of 1044
REJ09B0280-0300
Bit 6—D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output.
Bit 6
DAOE0
Description
0
Analog output DA0 is disabled
(Initial value)
1
D/A conversion is enabled on channel 0. Analog output DA0 is enabled
Bit 5—D/A Enable (DAE): Controls D/A conversion, in combination with bits DAOE0 and
DAOE1. D/A conversion is controlled independently on channels 0 and 1 when DAE = 0.
Channels 0 and 1 are controlled together when DAE = 1.
Output of the converted results is always controlled independently by DAOE0 and DAOE1.
Bit 7
Bit 6
Bit 5
DAOE1
DAOE0
DAE
D/A conversion
00
*
Disabled on channels 0 and 1
1
0
Enabled on channel 0
Disabled on channel 1
1
Enabled on channels 0 and 1
1
0
0
Disabled on channel 0
Enabled on channel 1
1
Enabled on channels 0 and 1
1
*
Enabled on channels 0 and 1
*: Don’t care
If the chip enters software standby mode while D/A conversion is enabled, the D/A output is
retained and the analog power supply current is the same as during D/A conversion. If it is
necessary to reduce the analog power supply current in software standby mode, disable D/A
output by clearing the DAOE0, DAOE1 and DAE bits to 0.
Bits 4 to 0—Reserved: These bits cannot be modified and are always read as 1.



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