R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 497
R4F24278NVFQU
Manufacturer Part Number
R4F24278NVFQU
Description
MCU 512K/48K 2.7-5.5V 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24278NVFQU.pdf
(1482 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
REALTEK
Quantity:
2 300
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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H8S/2427, H8S/2427R, H8S/2425 Group
(2)
Figure 9.16 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.
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
φ
Address bus
RD
HWR
LWR
ETEND
Normal Transfer Mode (Burst Mode)
Figure 9.16 Example of Normal Transfer Mode (Burst Mode) Transfer
Bus
release
EXDMA
read
EXDMA
write
EXDMA
read
Burst transfer
EXDMA
write
EXDMA
Section 9 EXDMA Controller (EXDMAC)
Last transfer cycle
read
EXDMA
write
Page 467 of 1448
Bus
release
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