ADSP-BF561_06 AD [Analog Devices], ADSP-BF561_06 Datasheet - Page 37

• Manufacturer Part Number: ADSP-BF561_06
• Description: Blackfin Embedded Symmetric Multiprocessor
• Manufacturer: AD [Analog Devices]

Universal Asynchronous Receiver Transmitter (UART)
Port—Receive and Transmit Timing
Figure 22
The maximum baud rate is SCLK/16. As shown in
there is some latency between the generation internal UART
interrupts and the external data operations. These latencies are
negligible at the data transmission rates for the UART.
TRANSMIT
describes UART port receive and transmit operations.
RECEIVE
(SAMPLE CLOCK)
RXD
UART RECEIVE
TXD
UART TRANSMIT
INTERRUPT
INTERNAL
INTERRUPT
INTERNAL
CLKOUT
WRITEN TO
AS DATA
BUFFER
START
Figure 22. UART Port—Receive and Transmit Timing
Figure
Rev. A | Page 37 of 60 | May 2006
22,
DATA8–5
DATA8–5
STOP
STOP2–1
UART TRANSMIT BIT SET BY PROGRAM;
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY WRITE TO TRANSMIT
CLEARED BY FIFO READ
ADSP-BF561