R4F24269NVFQV Renesas Electronics America, R4F24269NVFQV Datasheet - Page 473

• 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: -

H8S/2426, H8S/2426R, H8S/2424 Group
(2)
Figure 8.16 shows an example of transfer when ETEND output is enabled, and word-size, normal
transfer mode (burst mode) is performed from external 16-bit, 2-state access space to external 16-
bit, 2-state access space.
In burst mode, one-byte or one-word transfers are executed continuously until transfer ends.
Once burst transfer starts, requests from other channels, even of higher priority, are held pending
until transfer ends.
If an NMI interrupt is generated while a channel designated for burst transfer is enabled for
transfer, the EDA bit is cleared and transfer is disabled. If a block transfer has already been
initiated within the EXDMAC, the bus is released on completion of the currently executing byte or
word transfer, and burst transfer is aborted. If the last transfer cycle in burst transfer has been
initiated within the EXDMAC, transfer is executed to the end even if the EDA bit is cleared.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
φ
Address bus
RD
HWR
LWR
ETEND
Normal Transfer Mode (Burst Mode)
Figure 8.16 Example of Normal Transfer Mode (Burst Mode) Transfer
Bus
release
EXDMA
read
EXDMA
write
EXDMA
read
Burst transfer
EXDMA
write
EXDMA
Section 8 EXDMA Controller (EXDMAC)
Last transfer cycle
read
EXDMA
write
Page 443 of 1372
Bus
release