DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 393

• Manufacturer Part Number: DF38122HWV
• Description: IC H8/38122 MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of DF38122HWV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 10.9 shows an example of the operation when receiving in asynchronous mode.
10.3.3
In synchronous mode, SCI3 transmits and receives data in synchronization with clock pulses.
This mode is suitable for high-speed serial communication.
SCI3 has separate transmission and reception units, allowing full-duplex communication with a
shared clock.
As the transmission and reception units are both double-buffered, data can be written during
transmission and read during reception, making possible continuous transmission and reception.
Serial
data
RDRF
FER
LSI
operation
User
processing
Figure 10.9 Example of Operation when Receiving in Asynchronous Mode
Operation in Synchronous Mode
1
Start
bit
0
D0
D1
Receive
1 frame
data
D7
(8-Bit Data, Parity, 1 Stop Bit)
Parity
0/1
bit
RXI request
Stop
bit
1
Start
bit
0
D0
RDRF
cleared to 0
RDR data read
1 frame
Section 10 Serial Communication Interface
D1
Rev. 8.00 Mar. 09, 2010 Page 371 of 658
Receive
data
D7
Parity
0/1
bit
Stop
bit
0
0 start bit
detected
Mark state
(idle state)
REJ09B0042-0800
1
ERI request in
response to
framing error
Framing error
processing