Datasheet

Section 20 D/A Converter
(This function is not available in the H8S/2695)
R01UH0166EJ0600 Rev. 6.00 Page 931 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Bit 6—D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output.
Bit 6
DAOE0 Description
0 Analog output DA0 (DA2) is disabled (Initial value)
1 D/A conversion is enabled on channel 0. Analog output DA0 (DA2) 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
DAOE1
Bit 6
DAOE0
Bit 5
DAE D/A conversion
0 0 * Disabled on channels 0 and 1 (channels 2 and 3)
1 0 Enabled on channel 0 (channel 2)
Disabled on channel 1 (channel 3)
1 Enabled on channels 0 and 1 (channels 2 and 3)
1 0 0 Disabled on channel 0 (channel 2)
Enabled on channel 1 (channel 3)
1 Enabled on channels 0 and 1 (channels 2 and 3)
1 * Enabled on channels 0 and 1 (channels 2 and 3)
*: Don't care
If the H8S/2633 Group 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 both the DAOE0 and DAOE1 bits to 0.
Bits 4 to 0—Reserved: These bits cannot be modified and are always read as 1.