R4F24269NVFQV Renesas Electronics America, R4F24269NVFQV Datasheet - Page 954

• Manufacturer Part Number: R4F24269NVFQV
• Description: MCU 256KB FLASH 64K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24269NVFQV

• 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: 64K 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: -

Section 15 Serial Communication Interface (SCI, IrDA)
Page 924 of 1372
[3]
No
No
Read receive data in RDR, and
Clear ORER flag in SSR to 0
clear RDRF flag in SSR to 0
Read ORER flag in SSR
Clear RE bit in SCR to 0
Read RDRF flag in SSR
Overrun error handling
All data received?
Start of reception
Error handling
Initialization
Figure 15.19 Sample Serial Reception Flowchart
ORER = 1?
RDRF = 1?
<End>
<End>
Yes
Yes
No
(Continued below)
Error processing
Yes
[2]
[1]
[3]
[4]
[5]
[1]
[2] [3]
[4]
[5]
The RxD pin is automatically
designated as the receive data
input pin.
If a receive error occurs, read the
ORER flag in SSR, and after
performing the appropriate error
handling, clear the ORER flag to
0. Transfer cannot be resumed if
the ORER flag is set to 1.
SCI status check and receive
data read:
Read SSR and check that the
RDRF flag is set to 1, then read
the receive data in RDR and
clear the RDRF flag to 0.
Transition of the RDRF flag from
0 to 1 can also be identified by
an RXI interrupt.
Serial reception continuation
procedure:
To continue serial reception,
before the MSB (bit 7) of the
current frame is received, finish
reading the RDRF flag, reading
RDR, and clearing the RDRF flag
to 0. The RDRF flag is cleared
automatically when the DMAC or
DTC is activated by a receive-
data-full interrupt (RXI) request
and the RDR value is read.
SCI initialization:
Receive error handling:
H8S/2426, H8S/2426R, H8S/2424 Group
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010