Peripheral Simulation

For Infineon C517A-4R — Serial UART 1

Simulation support for this peripheral or feature is comprised of:

• Dialog boxes which display and allow you to change peripheral configuration.

These simulation capabilities are described below.

Serial Channel-1 Dialog

The Serial Channel 1 dialog displays and allows you to edit the configuration of the Serial Interface.

• Mode displays and allows you to change the serial interface mode of operation (data length, synchronous or asynchronous).
• S1CON (Serial Control Register 1) holds the control and setup information for programming serial port 1.
• S1BUF (Serial Interface Buffer Register 1) contains the transmit data to be sent or received data.
• SM21 (Enable Serial Port 1 Multiprocessor Communication In Modes 2 and 3) is set to suppress a receiver interrupt (RI1) if the received 9th data bit is 0.
• TB81 (Serial Port 1 Transmitter Bit 9) is the 9th data bit to be transmitted for serial modes 2 and 3.
• REN1 (Receiver Enable) is set to enable serial data input.
• RB81 (Serial Port 1 Receiver Bit 9) is set for serial modes 2 and 3 when a 9th bit is received. In serial mode 1, this is the stop bit.

BaudRate

• S1RELH (Baudrate Generator Reload High Value) contains the upper 2-bits of the 10-bit value that automatically reloads into the 10-bit timer that generates the baudrate.
• S1RELL (Baudrate Generator Reload Low Value) contains the lower byte of the 10-bit value that automatically reloads into the 10-bit timer that generates the baudrate.
• Baudrate is the actual baudrate for the serial channel. It can be derived from the oscillator frequency, or generated by Timer 1.

IRQ

• TI1 (Transmitter Interrupt Flag) is set by hardware for each character frame transmitted. TI1 is cleared by software.
• RI1 (Receiver Interrupt Flag) is set by hardware for each character frame received. RI1 is cleared by software.