R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 462
R4F24568NVFQV
Manufacturer Part Number
R4F24568NVFQV
Description
MCU 128KKB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of R4F24568NVFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
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 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
Eeprom Size
-
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H8S/2456, H8S/2456R, H8S/2454 Group
Section 8 EXDMA Controller (EXDMAC)
(2)
Block Transfer Mode
In block transfer mode, the number of bytes or words specified by the block size is transferred in
response to one transfer request. The upper 8 bits of EDTCR specify the block size, and the lower
16 bits function as a 16-bit transfer counter. A block size of 1 to 256 can be specified. During
transfer of a block, transfer requests for other higher-priority channels are held pending. When
transfer of one block is completed, the bus is released in the next cycle.
When the BGUP bit is set to 1 in EDMDR, the bus is released if a bus request is issued by another
bus master during block transfer.
Address register values are updated in the same way as in normal mode. There is no function for
restoring the initial address register values after each block transfer.
The ETEND signal is output for each block transfer in the EXDMA transfer cycle in which the
block ends. The EDRAK signal is output once for one transfer request (for transfer of one block).
Caution is required when setting the repeat area overflow interrupt of the repeat area function in
block transfer mode. See section 8.4.6, Repeat Area Function, for details.
Block transfer is aborted if an NMI interrupt is generated. See section 8.4.12, Ending EXDMA
Transfer, for details.
Figure 8.8 shows an example of EXDMA transfer timing in block transfer mode.
Page 432 of 1392
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
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