Texas Instruments AM335x Sitara User Manual

2
2
Start
Bit
Data Bits
UARTx_TXD
3
Data Bits
Bit
Start
3
UARTx_RXD
2
3
Stop Bit
Stop Bit
AM3359, AM3358, AM3357, AM3356, AM3354, AM3352
www.ti.com SPRS717H –OCTOBER 2011–REVISED MAY 2015
7.15 Universal Asynchronous Receiver Transmitter (UART)
For more information, see the Universal Asynchronous Receiver Transmitter (UART) section of the
AM335x Sitara Processors Technical Reference Manual (SPRUH73).
7.15.1 UART Electrical Data and Timing
Table 7-113. Timing Requirements for UARTx Receive
(see Figure 7-114)
NO. MIN MAX UNIT
3 t
w(RX)
Pulse duration, receive start, stop, data bit 0.96U
(1)
1.05U
(1)
ns
(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
1 ƒ
baud(baud)
Maximum programmable baud rate 3.6864 MHz
2 t
w(TX)
Pulse duration, transmit start, stop, data bit U – 2
(1)
U + 2
(1)
ns
(1) U = UART baud time = 1 / programmed baud rate
Figure 7-114. UART Timings
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Texas Instruments AM335x Sitara Specifications

General

Brand	Texas Instruments
Model	AM335x Sitara
Category	Processor
Language	English