R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 979
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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H8S/2426, H8S/2426R, H8S/2424 Group
15.10.5 Relation between Writes to TDR and the TDRE Flag
The TDRE flag in SSR is a status flag that indicates that transmit data has been transferred from
TDR to TSR. When the SCI transfers data from TDR to TSR, the TDRE flag is set to 1.
Data can be written to TDR regardless of the state of the TDRE flag. However, if new data is
written to TDR when the TDRE flag is cleared to 0, the data stored in TDR will be lost since it has
not yet been transferred to TSR. It is therefore essential to check that the TDRE flag is set to 1
before writing transmit data to TDR.
15.10.6 Restrictions on Use of DMAC or DTC
• When an external clock source is used as the serial clock, the transmit clock should not be
• When RDR is read by the DMAC or DTC, be sure to set the activation source to the relevant
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
input until at least 5 φ clock cycles after TDR is updated by the DMAC or DTC. Incorrect
operation may occur if the transmit clock is input within 4 φ clocks after TDR is updated.
(Figure 15.35)
SCI receive-data-full interrupt (RXI).
SCK
TDRE
Serial data
Note: When operating on an external clock, set t > 4 clocks.
Figure 15.35 Example of Synchronous Transmission Using DTC
t
LSB
D0
D1
D2
D3
Section 15 Serial Communication Interface (SCI, IrDA)
D4
D5
D6
D7
Page 949 of 1372
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