HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 291

• 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: -

Transmitting: Figure 10.12 shows a typical flow chart for data transmission. After SCI3
initialization, follow the procedure below.
SCI3 operates as follows during data transmission.
274
1
2
3
Figure 10.12 Typical Data Transmission Flow Chart (Asynchronous Mode)
Write transmit data in TDR
Set PDR = 0 and PCR = 1
Clear bit TE in SCR3 to 0
Read bit TDRE in SSR
Read bit TEND in SSR
data transmission?
Break output?
TDRE = 1?
TEND = 1?
Continue
Start
End
Yes
Yes
Yes
No
Yes
No
No
No
1.
2.
3.
Read the serial status register (SRR),
and after confirming that bit TDRE = 1,
write transmit data in the transmit data
register (TDR). When data is written to
TDR, TDRE is automatically cleared to 0.
To continue transmitting data, read bit TDRE
to make sure it is set to 1, then write the
next data to TDR. When data is written to
TDR, TDRE is automatically cleared to 0.
To output a break signal when transmission
ends, first set the port values PCR = 1 and
PDR = 0, then clear bit TE in SCR3 to 0.