r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 894
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
r4f24565NVFQV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
r4f24565NVFQV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
r4f24568NVFQV
Manufacturer:
REA
Quantity:
15
Company:
Part Number:
r4f24568NVFQV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
r4f24568NVRFQV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
r4f24568NVRFQV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
r4f24568NVZFQV
Manufacturer:
REA
Quantity:
5
Company:
Part Number:
r4f24568NVZFQV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
r4f24569DVRFQV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
r4f24569DVRFQV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
r4f24569VFQV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 894 of 1376
- Download datasheet (8Mb)
Section 15 Serial Communication Interface (SCI, IrDA)
15.4.5
Figure 15.6 shows an example of the operation for transmission in asynchronous mode. In
transmission, the SCI operates as described below.
1. The SCI monitors the TDRE flag in SSR, and if is cleared to 0, recognizes that data has been
2. After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts
3. Data is sent from the TxD pin in the following order: start bit, transmit data, parity bit or
4. The SCI checks the TDRE flag at the timing for sending the stop bit.
5. If the TDRE flag is 0, the data is transferred from TDR to TSR, the stop bit is sent, and then
6. If the TDRE flag is 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the “mark
Figure 15.7 shows a sample flowchart for transmission in asynchronous mode.
Rev. 1.00 Sep. 19, 2008 Page 864 of 1342
REJ09B0467-0100
TDRE
TEND
TXI interrupt
request generated
written to TDR, and transfers the data from TDR to TSR.
transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt request (TXI)
is generated. Because the TXI interrupt routine writes the next transmit data to TDR before
transmission of the current transmit data has finished, continuous transmission can be enabled.
multiprocessor bit (may be omitted depending on the format), and stop bit.
serial transmission of the next frame is started.
state” is entered in which 1 is output. If the TEIE bit in SCR is set to 1 at this time, a TEI
interrupt request is generated.
1
Figure 15.6 Example of Operation in Transmission in Asynchronous Mode
Data Transmission (Asynchronous Mode)
Start
bit
0
Data written to TDR and
TDRE flag cleared to 0 in
TXI interrupt handling routine
D0
D1
(Example with 8-Bit Data, Parity, One Stop Bit)
1 frame
Data
D7
Parity
bit
0/1
TXI interrupt
request generated
Stop
bit
1
Start
bit
0
D0
D1
Data
D7
Parity
bit
0/1
TEI interrupt
request generated
Stop
bit
1
Idle state
(mark state)
1
Related parts for r4f2456
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: