AM3351 datasheet(231/252 Pages) TI1

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Start

Bit

Data Bits

UARTx_TXD

Data Bits

Bit

Start

UARTx_RXD

Stop Bit

231

AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351

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SPRS717J – OCTOBER 2011 – REVISED APRIL 2016

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Peripheral Information and Timings

7.15 Universal Asynchronous Receiver Transmitter (UART)

For more information, see the Universal Asynchronous Receiver Transmitter (UART) section of the

AM335x and AMIC110 Sitara Processors Technical Reference Manual.

7.15.1 UART Electrical Data and Timing

Table 7-113. Timing Requirements for UARTx Receive

(see Figure 7-114)

NO.

MIN

MAX

UNIT

tw(RX)

Pulse duration, receive start, stop, data bit

0.96U(1)

1.05U(1)

(1) U = UART baud time = 1/programmed baud rate.

Table 7-114. Switching Characteristics for UARTx Transmit

(see Figure 7-114)

NO.

PARAMETER

MIN

MAX

UNIT

ƒbaud(baud)

Maximum programmable baud rate

3.6864

MHz

tw(TX)

Pulse duration, transmit start, stop, data bit

U – 2(1)

U + 2(1)

(1) U = UART baud time = 1 / programmed baud rate

Figure 7-114. UART Timings

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