Contents-11
12.5.3 Example of SIO6-related Register Settings ............................................ 12-23
12.5.3.1 UART Mode Settings ..................................................................... 12-23
Transmit settings .................................................................................... 12-23
(1) Port 15 mode register (P15IO) ................................................................ 12-23
(2) Port 15 secondary function control register (P15SF) .............................. 12-23
(3) SIO6 transmit control register (ST6CON) ............................................... 12-23
(4) SIO6 receive control register (SR6CON) ................................................ 12-23
(5) SIO6 transmit-receive buffer register (S6BUF) ....................................... 12-23
Receive settings ..................................................................................... 12-23
(1) Port 15 mode register (P15IO) ................................................................ 12-23
(2) Port 15 secondary function control register (P15SF) .............................. 12-23
(3) SIO6 receive control register (SR6CON) ................................................ 12-24
12.5.3.2 Synchronous Mode Settings ......................................................... 12-24
Transmit settings .................................................................................... 12-24
(1) Port 15 mode register (P15IO) ................................................................ 12-24
(2) Port 15 secondary function control register (P15SF) .............................. 12-24
(3) SIO6 transmit control register (ST6CON) ............................................... 12-24
(4) SIO6 transmit-receive buffer register (S6BUF) ....................................... 12-24
Receive settings ..................................................................................... 12-25
(1) Port 15 mode register (P15IO) ................................................................ 12-25
(2) Port 15 secondary function control register (P15SF) .............................. 12-25
(3) SIO6 receive control register (SR6CON) ................................................ 12-25
12.5.3.3 Baud Rate Generator (Timer 3) Settings ...................................... 12-25
(1) General-purpose 8-bit timer 3 counter (TM3C) ....................................... 12-25
(2) General-purpose 8-bit timer 3 control register (TM3CON) ..................... 12-25
12.5.4 SIO6 Interrupt ......................................................................................... 12-26
12.6 SIO1, SIO6 Operation .................................................................................. 12-27
12.6.1 Transmit Operation ................................................................................. 12-27
UART mode ............................................................................................ 12-27
Synchronous mode ................................................................................. 12-28
12.6.2 Receive Operation .................................................................................. 12-35
UART mode ............................................................................................ 12-35
Synchronous mode ................................................................................. 12-36
12.7 SIO4 ............................................................................................................. 12-40
12.7.1 SIO4 Configuration ................................................................................. 12-40
12.7.2 Description of SIO4 Registers ................................................................ 12-41
(1) SIO4 control register (SIO4CON) ........................................................... 12-41
(2) FIFO control register (FIFOCON) ........................................................... 12-43
(3) Serial input FIFO data register (SIN4) .................................................... 12-45
(4) Serial output FIFO data register (SOUT4) .............................................. 12-45