R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 539
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
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Part Number:
R4F24278NVFQU
Manufacturer:
REALTEK
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H8S/2427, H8S/2427R, H8S/2425 Group
10.3
The DTC operates when activated by an interrupt or by a write to DTVECR or DTCCR by
software. An interrupt request can be directed to the CPU or DTC, as designated by the
corresponding DTCER bit. At the end of a data transfer (or the last consecutive transfer in the case
of chain transfer), the activation source or corresponding DTCER bit is cleared. The activation
source flag, in the case of RXI0, for example, is the RDRF flag of SCI_0.
When an interrupt has been designated a DTC activation source, existing CPU mask level and
interrupt controller priorities have no effect. If there is more than one activation source at the same
time, the DTC operates in accordance with the default priorities.
Table 10.1 shows a relationship between activation sources and DTCER clear conditions. Figure
10.2 shows a block diagram of activation source control. For details see section 6, Interrupt
Controller.
Table 10.1 Relationship between Activation Sources and DTCER Clearing
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Activation Source
Activation by software
Activation by an interrupt
Activation Sources
DISEL = 0 and Specified
Number of Transfers Has
Not Ended
SWDTIF bit remains cleared to 0
•
•
Corresponding DTCER bit
remains set to 1.
Activation source flag is
cleared to 0.
DISEL = 1 or Specified Number
of Transfers Has Ended
•
•
•
•
•
Section 10 Data Transfer Controller (DTC)
SWDTIF bit is set to 1
Interrupt request to CPU
Corresponding DTCER bit is
cleared to 0.
Activation source flag remains
set to 1.
Interrupt that became the
activation source is requested
to the CPU.
Page 509 of 1448
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