R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 446

• 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)
8.5.12
The DMAC channel priority order is: channel 0 > channel 1 > channel 4 > channel 2 > channel 3 >
channel 5. Table 8.10 summarizes the priority order for DMAC channels.
Table 8.10 DMAC Channel Priority Order
If transfer requests are issued simultaneously for more than one channel, or if a transfer request for
another channel is issued during a transfer, when the bus is released, the DMAC selects the
highest-priority channel from among those issuing a request according to the priority order shown
in table 8.10. During burst transfer, or when one block is being transferred in block transfer, the
channel will not be changed until the end of the transfer. Figure 8.39 shows a transfer example in
which transfer requests are issued simultaneously for channels 0, 1, and 4.
Page 416 of 1448
Channel
Channel 0
Channel 1
Channel 4
Channel 2
Channel 3
Channel 5
Multi-Channel Operation
Priority
High
Low
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010