DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 510
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 15 Serial Communication Interface (SCI, IrDA)
In serial reception, the SCI operates as described below.
1. The SCI monitors the transmission line, and if a 0 stop bit is detected, performs internal
2. The received data is stored in RSR in LSB-to-MSB order.
3. The parity bit and stop bit are received.
Note: * Subsequent receive operations cannot be performed when a receive error has occurred.
4. If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive-data-full interrupt
Rev. 4.00 Sep 27, 2006 page 464 of 1130
REJ09B0327-0400
synchronization and starts reception.
After receiving these bits, the SCI carries out the following checks.
a. Parity check:
b. Stop bit check:
c. Status check:
If all the above checks are passed, the RDRF flag is set to 1, and the receive data is stored in
RDR.
If a receive error * is detected in the error check, the operation is as shown in table 15.11.
(RXI) request is generated.
Also, if the RIE bit in SCR is set to 1 when the ORER, PER, or FER flag changes to 1, a
receive-error interrupt (ERI) request is generated.
The SCI checks whether the number of 1 bits in the receive data agrees with the parity
(even or odd) set in the O/E bit in SMR.
The SCI checks whether the stop bit is 1.
If there are two stop bits, only the first is checked.
The SCI checks whether the RDRF flag is 0, indicating that the receive data can be
transferred from RSR to RDR.
Also note that the RDRF flag is not set to 1 in reception, and so the error flags must be
cleared to 0.
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