sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 424
sc9s12hy64j0vllr
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sc9s12hy64j0vllr
Description
S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
Manufacturer
Freescale Semiconductor, Inc
Datasheet
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Serial Communication Interface (S12SCIV5)
12.2
The SCI module has a total of two external pins.
12.2.1
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.
12.2.2
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.
12.3
This section provides a detailed description of all the SCI registers.
12.3.1
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.
424
External Signal Description
Memory Map and Register Definition
TXD — Transmit Pin
RXD — Receive Pin
Module Memory Map and Register Definition
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Figure
12-2. The address listed for each register is
Freescale Semiconductor
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