HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 293

• 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: -

276
1
2
3
4
Read received data in RDR
Read bits OER, PER, and
Clear bits OER, PER, and
Clear bit RE in SCR3 to 0
Read bit RDRF in SSR
Figure 10.14 Typical Serial Data Receiving Flow Chart in Asynchronous Mode
Continue receiving?
End receive error
FER in SSR to 0
error processing
OER + PER +
Start receive
FER in SSR
RDRF = 1?
No
No
No
processing
OER = 1?
PER = 1?
FER = 1?
FER = 1
Start
End
Yes
No
No
Yes
Yes
Yes
4
Yes
Yes
No
Receive error processing
Parity error
processing
A
Framing error
Overrun error
processing
processing
Break?
No
Yes
1. Read bits OER, PER, and
2. Read the serial status register
3. To continue receiving data,
4. When a receive error occurs,
A
FER in the serial status
register (SSR) to
determine if a receive
error has occurred.
If a receive error has
occurred, receive error
processing is executed.
(SSR), and after confirming
that bit RDRF = 1, read
received data from the receive
data register (RDR).
When RDR data is read, RDRF
is automatically cleared to 0.
read bit RDRF and finish
reading RDR before the stop
bit of the present frame is
received.
When data is read from RDR,
RDRF is automatically cleared
to 0.
read bits OER, PER, and FER
in SSR to determine which
error (s) occurred.
After the necessary error
processing, be sure to clear
the above bits all to 0.
Data receiving cannot be resumed
while any of bits OER, PER, or
FER is set to 1.
When a framing error occurs,
a break can be detected by
reading the RXD pin value.