R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 378

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Section 8 DMA Controller (DMAC)
Page 348 of 1448
Bit
4
3
Bit Name
DTIE
DTA
0
0
Initial Value
R/W
R/W
R/W
Description
Data Transfer End Interrupt Enable
Enables or disables an interrupt to the CPU or
DTC when transfer ends. If the DTE bit is cleared
to 0 when DTIE = 1, the DMAC regards this as
indicating the end of a transfer, and issues a
transfer end interrupt request to the CPU or DTC.
A transfer end interrupt can be canceled either by
clearing the DTIE bit to 0 in the interrupt handling
routine, or by performing processing to continue
transfer by setting the transfer counter and
address register again, and then setting the DTE
bit to 1.
Data Transfer Acknowledge
Enables or disables clearing when DMA transfer is
performed for the internal interrupt source
selected by the DTF3 to DTF0 bits in DMACRF.
If the DTA bit is set to 1 when DTE = 1, the
internal interrupt source is cleared automatically
by DMA transfer. When DTE = 1 and DTA = 1, the
internal interrupt source does not issue an
interrupt request to the CPU or DTC.
If the DTA bit is cleared to 0 when DTE = 1, the
internal interrupt source is not cleared when a
transfer is performed, and can issue an interrupt
request to the CPU or DTC in parallel. In this
case, the interrupt source should be cleared by
the CPU or DTC transfer.
When DTE = 0, the internal interrupt source issues
an interrupt request to the CPU or DTC regardless
of the DTA bit setting.
The state of the DTME bit does not affect the
above operations.
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010