h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 601

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Bit 6—D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output.
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.
*: Don’t care
If the H8S/2138 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, DAOE1 and DAE bits to 0.
Bits 4 to 0—Reserved: These bits cannot be modified and are always read as 1.
Bit 6
DAOE0
0
1
Bit 7
DAOE1
0
1
Description
Analog output DA0 is disabled
D/A conversion is enabled on channel 0. Analog output DA0 is enabled
Bit 6
DAOE0
0
1
0
1
Bit 5
DAE
*
0
1
0
1
*
D/A conversion
Disabled on channels 0 and 1
Enabled on channel 0
Disabled on channel 1
Enabled on channels 0 and 1
Disabled on channel 0
Enabled on channel 1
Enabled on channels 0 and 1
Enabled on channels 0 and 1
Rev. 4.00 Jun 06, 2006 page 547 of 1004
Section 18 D/A Converter
REJ09B0301-0400
(Initial value)