Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manual De Usuario
Los códigos de productos
DEMO9S12XHY256
Serial Communication Interface (S12SCIV5)
MC9S12XHY-Family Reference Manual, Rev. 1.04
454
Freescale Semiconductor
14.1.2
Features
The SCI includes these distinctive features:
•
Full-duplex or single-wire operation
•
Standard mark/space non-return-to-zero (NRZ) format
•
Selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse widths
•
13-bit baud rate selection
•
Programmable 8-bit or 9-bit data format
•
Separately enabled transmitter and receiver
•
Programmable polarity for transmitter and receiver
•
Programmable transmitter output parity
•
Two receiver wakeup methods:
— Idle line wakeup
— Address mark wakeup
— Address mark wakeup
•
Interrupt-driven operation with eight flags:
— Transmitter empty
— Transmission complete
— Receiver full
— Idle receiver input
— Receiver overrun
— Noise error
— Framing error
— Parity error
— Receive wakeup on active edge
— Transmit collision detect supporting LIN
— Break Detect supporting LIN
— Transmitter empty
— Transmission complete
— Receiver full
— Idle receiver input
— Receiver overrun
— Noise error
— Framing error
— Parity error
— Receive wakeup on active edge
— Transmit collision detect supporting LIN
— Break Detect supporting LIN
•
Receiver framing error detection
•
Hardware parity checking
•
1/16 bit-time noise detection
14.1.3
Modes of Operation
The SCI functions the same in normal, special, and emulation modes. It has two low power modes, wait
and stop modes.
and stop modes.
•
Run mode
•
Wait mode
•
Stop mode