SC9S12XS256J1MAA FREESCALE [Freescale Semiconductor, Inc], SC9S12XS256J1MAA Datasheet - Page 398
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SC9S12XS256J1MAA
Manufacturer Part Number
SC9S12XS256J1MAA
Description
HCS12 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.SC9S12XS256J1MAA.pdf
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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.
398
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. 1.09
Figure
14-2. The address listed for each register is
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