DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 517
DF3048BVX25V
Manufacturer Part Number
DF3048BVX25V
Description
MCU 3/5V 128K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3048BVX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Receiving Serial Data (Asynchronous Mode): Figure 13.7 shows a sample flowchart for
receiving serial data and indicates the procedure to follow.
No
No
Read RDRF flag in SSR
Clear RE bit to 0 in SCR
RDRF flag to 0 in SSR
and FER flags in SSR
from RDR, and clear
Read ORER, PER,
Read receive data
Start receiving
PER
ORER = 1?
RDRF = 1?
receiving?
Finished
Initialize
Figure 13.7 Sample Flowchart for Receiving Serial Data (1)
End
FER
No
Yes
Yes
(continued on next page)
Yes
Error handling
5
1
2
4
3
1.
2, 3.
4.
5.
Section 13 Serial Communication Interface
SCI initialization: the receive data function of
the RxD pin is selected automatically.
detection: if a receive error occurs, read the
ORER, PER, and FER flags in SSR to identify
the error. After executing the necessary error
handling, clear the ORER, PER, and FER
flags all to 0. Receiving cannot resume if any
of the ORER, PER, and FER flags remains
set to 1. When a framing error occurs, the
RxD pin can be read to detect the break state.
SCI status check and receive data read: read
SSR, check that RDRF is set to 1, then read
receive data from RDR and clear the RDRF
flag to 0. Notification that the RDRF flag has
changed from 0 to 1 can also be given by the
RXI interrupt.
To continue receiving serial data: check the
RDRF flag, read RDR, and clear the RDRF
flag to 0 before the stop bit of the current
frame is received. If the DMAC is activated
by an RXI interrupt to read the RDR value,
the RDRF flag is cleared automatically.
Rev. 3.00 Sep 27, 2006 page 489 of 872
Receive error handling and break
REJ09B0325-0300
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