Datasheet

Electrical Characteristics
i.MX 6Dual/6Quad Automotive and Infotainment Applications Processors, Rev. 6, 11/2018
NXP Semiconductors 133
4.12.21 UART I/O Configuration and Timing Parameters
4.12.21.1 UART RS-232 I/O Configuration in Different Modes
The i.MX 6Dual/6Quad UART interfaces can serve both as DTE or DCE device. This can be configured
by the DCEDTE control bit (default 0 – DCE mode). Table 86 shows the UART I/O configuration based
on the enabled mode.
Table 86. UART I/O Configuration vs. Mode
Port
DTE Mode DCE Mode
Direction Description Direction Description
UARTx_RTS_B Output RTS from DTE to DCE Input RTS from DTE to DCE
UARTx_CTS_B Input CTS from DCE to DTE Output CTS from DCE to DTE
UARTx_DTR_B Output DTR from DTE to DCE Input DTR from DTE to DCE
UARTx_DSR_B Input DSR from DCE to DTE Output DSR from DCE to DTE
UARTx_DCD_B Input DCD from DCE to DTE Output DCD from DCE to DTE
UARTx_RI_B Input RING from DCE to DTE Output RING from DCE to DTE
UARTx_TX_DATA Input Serial data from DCE to DTE Output Serial data from DCE to DTE
UARTx_RX_DATA Output Serial data from DTE to DCE Input Serial data from DTE to DCE