HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 295

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 10.15 shows a typical SCI3 data receive operation in asynchronous mode.
10.4.5
In synchronous mode, data is sent or received in synchronization with clock pulses. This mode is
suited to high-speed serial communication.
SCI3 consists of independent transmit and receive modules, so full duplex communication is
possible, sharing the same clock between both modules. Both the transmit and receive modules
have a double-buffer configuration. This allows data to be written during a transmit operation so
that data can be transmitted continuously, and enables data to be read during a receive operation so
that data can be received continuously.
278
Serial
data
RDRF
FER
SCI3 operation
User processing
1
Operation in Synchronous Mode
Start
bit
0
Figure 10.15 Typical Receive Operation in Asynchronous Mode
D0
D1
Receive
data
(8-Bit Data, Parity Bit Added, and 1 Stop Bit)
1 frame
D7
Parity
bit
RXI request
0/1
Stop
bit
1
Start
bit
0
RDRF cleared
to 0
Read RDR data
D0
1 frame
D1
Receive
data
D7
Parity
bit
0/1
Detects stop bit = 0
ERI request due
to framing error
Framing error
handling
Stop
bit
0
Mark
(idle state)
1