R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 367
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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Price
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REALTEK
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H8S/2427, H8S/2427R, H8S/2425 Group
8.3.5
DMAECRS controls the operation of DMAC channels 0, 1, 2, and 3.
• DMAECRS0, DMAECRS1, DMAECRS2, and DMAECRS3
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Bit
7, 6
5
Bit Name
⎯
DTE
DMA Enable Control Register S (DMAECRS)
Initial Value
All 0
0
R/W
⎯
R/W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
Data Transfer Enable
This bit is used to enable or disable the DMA data
transfer by the activation source selected by the
DTF3 to DTF0 bits in DMACRS.
When DTE = 0, data transfer is disabled and the
activation source is ignored. If the activation
source is an internal interrupt, an interrupt request
is issued to the CPU or DTC. If the DTE bit is
cleared to 0 when DTIE = 1, the DMAC regards
this as indicating the end of a transfer, and issues
a transfer end interrupt request to the CPU or
DTC.
When DTE = 1, data transfer is enabled and the
DMAC waits for a request by the activation
source. When a request is issued by the activation
source, transfer is executed.
[Clearing conditions]
⎯ When initialization is performed
⎯ When the specified number of transfers have
⎯ When 0 is written to the DTE bit to forcibly
[Setting condition]
⎯ When 1 is written to the DTE bit after reading
been completed in a transfer mode other than
repeat mode
suspend the transfer, or for a similar reason
DTE = 0
Section 8 DMA Controller (DMAC)
Page 337 of 1448
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