D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 231

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 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: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

7.3.2
The DTC operates when activated by an interrupt or by a write to DTVECR by software. An
interrupt request can be directed to the CPU or DTC, as designated by the corresponding DTCER
bit. An interrupt becomes a DTC activation source when the corresponding bit is set to 1, and a
CPU interrupt source when the bit is cleared to 0.
At the end of a data transfer (or the last consecutive transfer in the case of chain transfer), the
activation source or corresponding DTCER bit is cleared. Table 7.4 shows activation source and
DTCER clearance. The activation source flag, in the case of RXI0, for example, is the RDRF flag
of SCI0.
Table 7.4
Activation Source
Software activation
Interrupt activation
Figure 7.3 shows a block diagram of activation source control. For details see section 5, Interrupt
Controller.
Activation Sources
Activation Source and DTCER Clearance
When the DISEL Bit Is 0 and
the Specified Number of
Transfers Have Not Ended
The SWDTE bit is cleared to 0
•
•
The corresponding DTCER
bit remains set to 1
The activation source flag is
cleared to 0
Rev.7.00 Feb. 14, 2007 page 197 of 1108
When the DISEL Bit Is 1, or when
the Specified Number of Transfers
Have Ended
•
•
•
•
•
The SWDTE bit remains set to 1
An interrupt is issued to the CPU
The corresponding DTCER bit is
cleared to 0
The activation source flag remains
set to 1
A request is issued to the CPU for
the activation source interrupt
Section 7 Data Transfer Controller
REJ09B0089-0700