R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 460
R4F24268NVFQV
Manufacturer Part Number
R4F24268NVFQV
Description
MCU 256K FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24268NVZFQV.pdf
(1406 pages)
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
-
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Part Number:
R4F24268NVFQV
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Section 8 EXDMA Controller (EXDMAC)
8.4.5
There are two transfer modes: normal transfer mode and block transfer mode. When the activation
source is an external request, either normal transfer mode or block transfer mode can be selected.
When the activation source is an auto request, normal transfer mode is used.
(1)
In normal transfer mode, transfer of one transfer unit is processed in response to one transfer
request. EDTCR functions as a 24-bit transfer counter.
The ETEND signal is output only for the last DMA transfer. The EDRAK signal is output each
time a transfer request is accepted and transfer processing is started.
Figure 8.7 shows examples of DMA transfer timing in normal transfer mode.
Page 430 of 1372
Transfer conditions:
Transfer conditions:
Bus cycle
ETEND
EDREQ
EDRAK
Bus cycle
EDACK
Dual address mode, auto request mode
Single address mode, external request mode
Normal Transfer Mode
Transfer Modes
Figure 8.7 Examples of Timing in Normal Transfer Mode
Read
transfer cycle
EXDMA
Write
EXDMA
Read
Last EXDMA
transfer cycle
EXDMA
Write
H8S/2426, H8S/2426R, H8S/2424 Group
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
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