LFDAS12XSIT Freescale Semiconductor, LFDAS12XSIT Datasheet - Page 400
LFDAS12XSIT
Manufacturer Part Number
LFDAS12XSIT
Description
HARDWARE MC9S12XS 112-PIN
Manufacturer
Freescale Semiconductor
Datasheet
1.LFDAS12XSCT.pdf
(738 pages)
Specifications of LFDAS12XSIT
Module/board Type
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Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Serial Communication Interface (S12SCIV5)
14.2
The SCI module has a total of two external pins.
14.2.1
The TXD pin transmits SCI (standard or infrared) data. It will idle high in either mode and is high
impedance anytime the transmitter is disabled.
14.2.2
The RXD pin receives SCI (standard or infrared) data. An idle line is detected as a line high. This input is
ignored when the receiver is disabled and should be terminated to a known voltage.
14.3
This section provides a detailed description of all the SCI registers.
14.3.1
The memory map for the SCI module is given below in
the address offset. The total address for each register is the sum of the base address for the SCI module and
the address offset for each register.
400
External Signal Description
Memory Map and Register Definition
TXD — Transmit Pin
RXD — Receive Pin
Module Memory Map and Register Definition
S12XS Family Reference Manual, Rev. 1.11
Figure
14-2. The address listed for each register is
Freescale Semiconductor
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