DF3026X25V Renesas Electronics America, DF3026X25V Datasheet - Page 489
![MCU 3V 256K PB-FREE 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
DF3026X25V
Manufacturer Part Number
DF3026X25V
Description
MCU 3V 256K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3026X25V
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
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3026X25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 489 of 843
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Bit 7—Trigger Enable (TRGE): Enables or disables starting of A/D conversion by an external
trigger or 8-bit timer compare match.
Bit 7
TRGE
0
1
External trigger pin and 8-bit timer selection is performed by the 8-bit timer. For details, see
section 9, 8-Bit Timers.
Bits 6 to 1—Reserved: These bits cannot be modified and are always read as 1.
Bit 0—Reserved: This bit can be read or written, but must not be set to 1.
14.3
ADDRA to ADDRD are 16-bit registers, but they are connected to the CPU by an 8-bit data bus.
Therefore, although the upper byte can be be accessed directly by the CPU, the lower byte is read
through an 8-bit temporary register (TEMP).
An A/D data register is read as follows. When the upper byte is read, the upper-byte value is
transferred directly to the CPU and the lower-byte value is transferred into TEMP. Next, when the
lower byte is read, the TEMP contents are transferred to the CPU.
When reading an A/D data register, always read the upper byte before the lower byte. It is possible
to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained.
Figure 14.2 shows the data flow for access to an A/D data register.
CPU Interface
Description
Starting of A/D conversion by an external trigger or 8-bit timer compare match is
disabled
A/D conversion is started at the falling edge of the external trigger signal (
by an 8-bit timer compare match
Rev. 2.00 Sep 20, 2005 page 449 of 800
Section 14 A/D Converter
REJ09B0260-0200
(Initial value)
A D T R G
) or
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