HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 366
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
-
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Manufacturer
Quantity
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Part Number:
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Manufacturer:
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Bit 5 (transmit enable (TE)): TE enables or disables the SCI transmitter.
Bit 5: TE
0
1
•
Bit 4: RE
0
1
•
Bit 3: MPIE
0
1
Bit 4 (receive enable (RE)): RE enables or disables the SCI receiver.
Bit 3 (multiprocessor interrupt enable (MPIE)): MPIE enables or disables multiprocessor
interrupts. The MPIE setting is used only in the asynchronous mode, and only if the
multiprocessor mode bit (MP) in the serial mode register (SMR) is set to 1 during reception.
The MPIE setting is ignored in the clocked synchronous mode or when the MP bit is cleared to
0.
Description
Transmitter disabled. The transmit data register empty bit (TDRE) in
the serial status register (SSR) is locked at 1 (initial value).
Transmitter enabled. Serial transmission starts when the transmit data
register empty (TDRE) bit in the serial status register (SSR) is cleared
to 0 after writing of transmit data into the TDR. Select the transmit
format in the SMR before setting TE to 1.
Description
Receiver disabled (initial value). Clearing RE to 0 does not affect the
receive flags (RDRF, FER, PER, ORER). These flags retain their
previous values.
Receiver enabled. Serial reception starts when a start bit is detected in
the asynchronous mode, or serial clock input is detected in the clocked
synchronous mode. Select the receive format in the SMR before
setting RE to 1.
Description
Multiprocessor interrupts are disabled (normal receive operation) (initial
value)
MPE is cleared to 0 when:
1. MPIE is cleared to 0, or
2. Multiprocessor bit (MPB) is set to 1 in receive data.
Multiprocessor interrupts are enabled: Receive-data-full interrupt
requests (RXI), receive-error interrupt requests (ERI), and setting of
the RDRF, FER, and ORER status flags in the serial status register
(SSR) are disabled until the multiprocessor bit is set to 1.
The SCI does not transfer receive data from the RSR to the RDR, does
not detect receive errors, and does not set the RDRF, FER, and ORER
flags in the serial status register (SSR). When it receives data that
includes MPB = 1, MPB is set to 1, and the SCI automatically clears
MPIE to 0, generates RXI and ERI interrupts (if the TIE and RIE bits in
the SCR are set to 1), and allows the FER and ORER to be set.
RENESAS 349
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