HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 370
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
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Part Number
Manufacturer
Quantity
Price
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Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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•
Bit 4: FER
0
1
•
Bit 3: PER
0
1
Bit 4 (framing error (FER)): FER indicates that data reception ended abnormally due to a
framing error in the asynchronous mode.
Bit 3 (parity error (PER)): PER indicates that data reception (with parity) ended abnormally
due to a parity error in the asynchronous mode.
Description
Receiving is in progress or has ended normally. Clearing the RE bit to 0 in the
serial control register does not affect the FER bit, which retains its previous
value (initial value).
FER is cleared to 0 when:
• The chip is reset or enters standby mode
• Software reads FER after it has been set to 1, then writes 0 in FER
A receive framing error occurred. When the stop bit length is two bits, only the
first bit is checked. The second stop bit is not checked. When a framing error
occurs, the SCI transfers the receive data into the RDR but does not set RDRF.
Serial receiving cannot continue while FER is set to 1. In the clocked
synchronous mode, serial transmitting is also disabled.
FER is set to 1 if the stop bit at the end of receive data is checked and found to
be 0.
Description
Receiving is in progress or has ended normally. Clearing the RE bit to 0 in the
serial control register does not affect the PER bit, which retains its previous
value (initial value).
PER is cleared to 0 when:
• The chip is reset or enters standby mode
• Software reads PER after it has been set to 1, then writes 0 in PER
A receive parity error occurred. When a parity error occurs, the SCI transfers the
receive data into the RDR but does not set RDRF. Serial receiving cannot
continue while PER is set to 1. In the clocked synchronous mode, serial
transmitting is also disabled.
PER is set to 1 if the number of 1s in receive data, including the parity bit, does
not match the even or odd parity setting of the parity mode bit (O/E) in the serial
mode register (SMR).
RENESAS 353
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