ADSP-2191 AD [Analog Devices], ADSP-2191 Datasheet - Page 39

• Manufacturer Part Number: ADSP-2191
• Description: DSP Microcomputer
• Manufacturer: AD [Analog Devices]

Universal Asynchronous Receiver-Transmitter (UART) Port—Receive and Transmit Timing
Figure 23
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.
REV. 0
RECEIVE
TRANSMIT
UART RECEIVE
describes UART port receive and transmit operations. The maximum baud rate is HCLK/16. As shown in
UART TRANSMIT
(SAMPLE
INTERRUPT
CLOCK)
INTERNAL
INTERRUPT
HCLK
INTERNAL
RXD
TXD
WRITTEN TO
AS DATA
BUFFER
START
Figure 23. UART Port—Receive and Transmit Timing
DATA(5–8)
DATA(5–8)
–39–
STOP
STOP (1–2)
UART TRANSMIT BIT SET BY PROGRAM;
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY WRITE TO TRANSMIT
CLEARED BY FIFO READ
ADSP-2191M
Figure 23
there