HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 297

• 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: -

Data Transmit/Receive Operations
SCI3 Initialization: Before transmitting or receiving data, follow the SCI3 initialization
procedure explained under 10.4.4, SCI3 Initialization, and illustrated in figure 10.10.
Transmitting: Figure 10.17 shows a typical flow chart for data transmission. After SCI3
initialization, follow the procedure below.
280
1
2
Figure 10.17 Typical Data Transmission Flow Chart in Synchronous Mode
Continue data transmission?
Write transmit data in TDR
Write 0 to bit TE in SCR3
Read bit TDRE in SSR
Read bit TEND in SSR
TDRE = 1?
TEND = 1?
Start
End
Yes
Yes
No
Yes
No
No
1.
2.
Read the serial status register (SSR),
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 and data
transmission begins.
If clock output has been selected, after
data is written to TDR, the clock is
output and data transmission begins.
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.