ADSP-BF539F View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

ADSP-BF539F

Blackfin Embedded Processor

Analog Devices 

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ADSP-BF539/ADSP-BF539F

Universal Asynchronous Receiver-Transmitter

(UARTs) Port Timing

Figure 28 describes UART ports receive and transmit opera-

tions. The maximum baud rate is SCLK/16. As shown in

Figure 28 there is some latency between the generation internal

UARTs

CLKOUT

(SAMPLE CLOCK)

Preliminary Technical Data

interrupts and the external data operations. These latencies are

negligible at the data transmission rates for the UARTs.

RXx

RECEIVE

INTERNAL

UART RECEIVE

INTERRUPT

TXx

TRANSMIT

INTERNAL

UART TRANSMIT

INTERRUPT

START

DATA(5–8)

DATA(5–8)

STOP

UART RECEIVE BIT SET BY DATA STOP;

CLEARED BY FIFO READ

STOP (1–2)

UART TRANSMIT BIT SET BY PROGRAM;

CLEARED BY WRITE TO TRANSMIT

Figure 28. UART Port—Receive and Transmit Timing

Rev. PrF | Page 50 of 68 | September 2006

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