MC68HC705C8AVFNE Freescale Semiconductor, MC68HC705C8AVFNE Datasheet - Page 134
MC68HC705C8AVFNE
Manufacturer Part Number
MC68HC705C8AVFNE
Description
IC MCU 8BIT 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet
1.MC68HC705C8AB.pdf
(222 pages)
Specifications of MC68HC705C8AVFNE
Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC705C8AVFNE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Serial Communications Interface (SCI)
Technical Data
134
TDRE — Transmit Data Register Empty Bit
TC — Transmission Complete Bit
RDRF — Receive Data Register Full Bit
IDLE — Receiver Idle Bit
This clearable, read-only bit is set when the data in the SCDR
transfers to the transmit shift register. TDRE generates an interrupt
request if the TIE bit in SCCR2 is also set. Clear the TDRE bit by
reading the SCSR with TDRE set and then writing to the SCDR. Reset
sets the TDRE bit. Software must initialize the TDRE bit to logic 0 to
avoid an instant interrupt request when turning on the transmitter.
This clearable, read-only bit is set when the TDRE bit is set and no
data, preamble, or break character is being transmitted. TC generates
an interrupt request if the TCIE bit in SCCR2 is also set. Clear the TC
bit by reading the SCSR with TC set and then writing to the SCDR.
Reset sets the TC bit. Software must initialize the TC bit to logic 0 to
avoid an instant interrupt request when turning on the transmitter.
This clearable, read-only bit is set when the data in the receive shift
register transfers to the SCI data register. RDRF generates an
interrupt request if the RIE bit in SCCR2 is also set. Clear the RDRF
bit by reading the SCSR with RDRF set and then reading the SCDR.
Reset clears the RDRF bit.
This clearable, read-only bit is set when 10 or 11 consecutive logic 1s
appear on the receiver input. IDLE generates an interrupt request if
the ILIE bit in SCCR2 is also set. Clear the IDLE bit by reading the
SCSR with IDLE set, and then reading the SCDR. Reset clears the
IDLE bit.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = SCDR data transferred to transmit shift register
0 = SCDR data not transferred to transmit shift register
1 = No transmission in progress
0 = Transmission in progress
1 = Received data available in SCDR
0 = Received data not available in SCDR
1 = Receiver input idle
0 = Receiver input not idle
Serial Communications Interface (SCI)
Go to: www.freescale.com
MC68HC705C8A — Rev. 3
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