HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 395

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

RENESAS 378
Note:
Figure 13.10 Sample Flowchart for Transmitting Multiprocessor Serial Data
Circled numbers refer to the preceding procedure.
In transmitting serial data, the SCI operates as follows:
select theTxD pin function as
an output port with the PFC
Write transmit data in TDR
Clear TE bit to 0 in SCR;
Read TDRE bit in SSR
Read TEND bit in SSR
and set MPBT in SSR
Output break signal?
All data transmitted?
Clear TDRE bit to 0
Start transmitting
TEND = 1?
TDRE = 1?
Set DR = 0
Yes
Initialize
End
Yes
Yes
Yes
No
No
No
No
(1)
(2)
(3)
(4)