Datasheet

Section 19 D/A Converter
Rev. 4.00 Sep 27, 2006 page 609 of 1130
REJ09B0327-0400
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
Legend:
*: 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.