R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 506

• 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)
Figure 9.25 shows an example of transfer when ETEND output is enabled, and word-size, single
address mode transfer (write) is performed from an external device to external 8-bit, 2-state access
space.
After one byte or word has been transferred in response to one transfer request, the bus is released.
While the bus is released, one or more CPU, DMAC, or DTC bus cycles are initiated.
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φ
Address bus
HWR
LWR
EDACK
ETEND
Bus release
Figure 9.25 Example of Single Address Mode (Word Write) Transfer
EXDMA write
Bus release
EXDMA write
Bus release
H8S/2427, H8S/2427R, H8S/2425 Group
Last transfer cycle
EXDMA write
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Bus
release