R4F24269NVFQV Renesas Electronics America, R4F24269NVFQV Datasheet - Page 480

• Manufacturer Part Number: R4F24269NVFQV
• Description: MCU 256KB FLASH 64K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24269NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, 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
• Eeprom Size: -

Section 8 EXDMA Controller (EXDMAC)
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.
(2)
Figure 8.24 shows an example of transfer when ETEND output is enabled, and byte-size, single
address mode transfer (write) is performed from an external device to external 8-bit, 2-state access
space.
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φ
Address bus
RD
EDACK
ETEND
Single Address Mode (Write)
φ
Address bus
HWR
LWR
EDACK
ETEND
Bus release
Figure 8.23 Example of Single Address Mode (Word Read) Transfer
Figure 8.24 Example of Single Address Mode (Byte Write) Transfer
Bus release
EXDMA read
EXDMA
write
Bus release
Bus release
EXDMA
write
Bus release
EXDMA read
EXDMA
write
Bus release
Bus release
H8S/2426, H8S/2426R, H8S/2424 Group
EXDMA
Last transfer cycle
transfer
write
EXDMA read
cycle
Last
REJ09B0466-0350 Rev. 3.50
Bus release
Jul 09, 2010
Bus
release