
510
13.2.2
D/A Control Register (DACR)
7
—
0
R/W
6
DAOE0
0
R/W
5
—
0
R/W
4
—
1
—
3
—
1
—
0
—
1
—
2
—
1
—
1
—
1
—
Bit
Initial value
R/W
:
DACR is an 8-bit readable/writable register that controls the operation of the D/A converter.
DACR is initialized to H'1F by a reset and in hardware standby mode.
Bit 7—Reserved: Only 0 should be written to this bit.
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
Channel 0 D/A conversion is enabled; analog output DA0 is enabled
Bit 5—Reserved: Only 0 should be written to this bit.
If the H8S/2214 enters software standby mode when D/A conversion is enabled, the D/A output is
held and the analog power current is the same as during D/A conversion. When it is necessary to
reduce the analog power current in software standby mode, clear the DAOE0 bit to 0 to disable
D/A output.
Bits 4 to 0—Reserved: Read-only bits, always read as 1.
13.2.3
Module Stop Control Register C (MSTPCRC)
7
MSTPC7
1
R/W
6
MSTPC6
1
R/W
5
MSTPC5
1
R/W
4
MSTPC4
1
R/W
3
MSTPC3
1
R/W
0
MSTPC0
1
R/W
2
MSTPC2
1
R/W
1
MSTPC1
1
R/W
Bit
Initial value
R/W
:
MSTPCRC is an 8-bit readable/writable register that performs module stop mode control.
When the MSTPC5 bit in MSTPCR is set to 1, D/A converter operation stops at the end of the bus
cycle and a transition is made to module stop mode. Registers cannot be read or written to in
module stop mode. For details, see section 17.5, Module Stop Mode.