HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 508

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 15 D/A Converter
15.2.3
DASTCR is an 8-bit readable/writable register that enables or disables D/A output in software
standby mode.
DASTCR is initialized to H'FE by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 1—Reserved: These bits cannot be modified and are always read as 1.
Bit 0—D/A Standby Enable (DASTE): Enables or disables D/A output in software standby
mode.
Bit 0
DASTE
0
1
15.3
The D/A converter has two built-in D/A conversion circuits that can perform conversion
independently.
D/A conversion is performed constantly while enabled in DACR. If the DADR0 or DADR1 value
is modified, conversion of the new data begins immediately. The conversion results are output
when bits DAOE0 and DAOE1 are set to 1.
Rev. 2.00 Sep 20, 2005 page 468 of 800
REJ09B0260-0200
Bit
Initial value
Read/Write
D/A Standby Control Register (DASTCR)
Operation
Description
D/A output is disabled in software standby mode
D/A output is enabled in software standby mode
—
—
7
1
—
—
6
1
—
—
5
1
Reserved bits
—
—
4
1
—
—
3
1
D/A standby enable
Enables or disables D/A output
in software standby mode
—
—
2
1
—
—
1
1
(Initial value)
DASTE
R/W
0
0