R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 496

• 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 9 EXDMA Controller (EXDMAC)
9.4.9
(1)
Figure 9.15 shows an example of transfer when ETEND output is enabled, and word-size, normal
transfer mode (cycle steal mode) is performed from external 16-bit, 2-state access space to
external 16-bit, 2-state access space.
After one byte or word has been transferred, the bus is released. While the bus is released, one
CPU, DMAC, or DTC bus cycle is initiated.
Page 466 of 1448
φ
Address bus
RD
HWR
LWR
ETEND
Normal Transfer Mode (Cycle Steal Mode)
Figure 9.15 Example of Normal Transfer Mode (Cycle Steal Mode) Transfer
EXDMAC Bus Cycles (Dual Address Mode)
Bus
release
EXDMA
read
EXDMA
write
release
Bus
EXDMA
read
EXDMA
write
release
Bus
H8S/2427, H8S/2427R, H8S/2425 Group
EXDMA
read
Last transfer
REJ09B0565-0100 Rev. 1.00
cycle
EXDMA
write
Bus
release
Jul 22, 2010