HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 408
HD6477021X20V
Manufacturer Part Number
HD6477021X20V
Description
MCU 5V 32K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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In receiving, the SCI operates as follows:
1. The SCI synchronizes with serial clock input or output and initializes internally.
2. Receive data is shifted into the RSR in order from the LSB to the MSB. After receiving the
data, the SCI checks that RDRF is 0 so that receive data can be loaded from the RSR into the
ORER
RDRF
Serial
Serial
clock
data
RXI request
Receive direction
Figure 13.18 Sample Flowchart for Serial Receiving (cont)
Bit 7
Figure 13.19 Example of SCI Receive Operation
and clears RDRF to 0
RXI interrupt handler
Bit 0
reads data in RDR
No
1 frame
Clear ORER bit of SSR to 0
Overrun error handling
Bit 7
Error handling
ORER = 1?
End
RXI request
Bit 0
Yes
Bit 1
Bit 6
RENESAS 391
error, ERI
Overrun
request
Bit 7
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