MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 238
MC68HC708XL36
Manufacturer Part Number
MC68HC708XL36
Description
HCMOS Microcontroller Unit
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC68HC708XL36.pdf
(376 pages)
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SCI
Pin Name Conventions
Functional Description
MC68HC708XL36
238
The generic names of the SCI I/O pins are:
SCI I/O lines are implemented by sharing parallel I/O port pins. The full
name of an SCI input or output reflects the name of the shared port pin.
Table 1
pins.The generic pin names appear in the text of this section.
Figure 1
full-duplex, asynchronous, NRZ serial communication between the MCU
and remote devices, including other MCUs. The transmitter and receiver
of the SCI operate independently, although they use the same baud rate
generator. During normal operation, the CPU monitors the status of the
SCI, writes the data to be transmitted, and processes received data.
During DMA transfers, the DMA fetches data from memory for the SCI
to transmit and/or the DMA stores received data in memory.
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
RxD (receive data)
TxD (transmit data)
shows the full names and the generic names of the SCI I/O
shows the structure of the SCI module. The SCI allows
Generic Pin Names
Go to: www.freescale.com
Full Pin Names
Table 1. Pin Name Conventions
SCI
PE1/RxD
RxD
PE2/TxD
TxD
MOTOROLA
4-sci_d
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