PCIMX6QP5AVT2AB datasheet(127/160 Pages) NXP

127 / 160 page

Electrical Characteristics

i.MX 6DualPlus/6QuadPlus Applications Processors Industrial Products, Rev. 3, 11/2018

NXP Semiconductors

127

4.12.20 UART I/O Configuration and Timing Parameters

4.12.20.1 UART RS-232 I/O Configuration in Different Modes

The i.MX 6DualPlus/6QuadPlus UART interfaces can serve both as DTE or DCE device. This can be

configured by the DCEDTE control bit (default 0 – DCE mode). Table 77 shows the UART I/O

configuration based on the enabled mode.

Table 77. 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

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