HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 400

• 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: -

Figure 13.13 shows an example of SCI receive operation using a multiprocessor format.
Figure 13.13 Example of SCI Receive Operation (own ID does not match data) (8-bit data
RDRF
Serial
MPIE
value
interrupt) MPIE = 0
MPB
RDR
data
(multiprocessor
RXI request,
1
Start
bit
0
D
0
D
with multiprocessor bit and one stop bit)
Data ID1
1
handler reads data
in RDR and clears
D
RXI interrupt
RDRF to 0
7
MPB
1
Stop
bit
1
Start
bit
0
D
0
set to 1 again
Not own ID,
D
so MPIE is
1
Data 1
D
7
ID1
MPB
0
RDR maintains
Stop
bit
1
interrupt,
No RXI
RENESAS 383
state
Idle (mark
state)
1