R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 491

• Manufacturer Part Number: R4F24268NVFQV
• Description: MCU 256K FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24268NVFQV

• 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: 48K 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
(4)
In block transfer mode, transfer of one block is performed continuously in the same way as in
burst mode. The timing of the start of the next block transfer is the same as in normal transfer
mode.
If a transfer request is generated for another channel, an EXDMA cycle for the other channel is
generated before the next block transfer.
The EDREQ pin sensing timing is different for low level sensing and falling edge sensing. The
same applies to transfer request acceptance and transfer start timing.
Figures 8.39 to 8.44 show operation timing examples for various conditions.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
Figure 8.38 External Request/Cycle Steal Mode/Normal Transfer Mode Contention
φ pin
Original
channel
EDREQ
Original
channel
EDRAK
Bus cycle
Other
channel
EDREQ
Other
channel
EDRAK
External Request/Cycle Steal Mode/Block Transfer Mode
EXDMA transfer
with Another Channel/Dual Address Mode/Low Level Sensing
cycle
Bus release
3 cycles
EXDMA
read
EXDMA
write
1 cycle
Bus
release
Other channel
transfer cycle
Section 8 EXDMA Controller (EXDMAC)
1 cycle
Bus
release
EXDMA
read
Page 461 of 1372
EXDMA
write