Universal Asynchronous Receiver-Transmitter (UART) Port—Receive and Transmit Timing Figure 23 describes UART port" />
參數(shù)資料
型號: ADSP-2191MKSTZ-160
廠商: Analog Devices Inc
文件頁數(shù): 32/48頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 144LQFP
標準包裝: 1
系列: ADSP-21xx
類型: 定點
接口: 主機接口,SPI,SSP,UART
時鐘速率: 160MHz
非易失內(nèi)存: 外部
芯片上RAM: 160kB
電壓 - 輸入/輸出: 3.00V,3.30V
電壓 - 核心: 2.50V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設備封裝: 144-LQFP(20x20)
包裝: 托盤
ADSP-2191M
–38–
REV. A
Universal Asynchronous Receiver-Transmitter (UART)
Port—Receive and Transmit Timing
Figure 23 describes UART port receive and transmit operations.
The maximum baud rate is HCLK/16. As shown in Figure 23
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.
Figure 23. UART Port—Receive and Transmit Timing
RXD
DATA(5–8)
INTERNAL
UART RECEIVE
INTERRUPT
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY FIFO READ
HCLK
(SAMPLE
CLOCK)
TXD
DATA(5–8)
STOP (1–2)
INTERNAL
UART TRANSMIT
INTERRUPT
UART TRANSMIT BIT SET BY PROGRAM;
CLEARED BY WRITE TO TRANSMIT
START
STOP
TRANSMIT
RECEIVE
AS DATA
WRITTEN TO
BUFFER
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