参数资料
型号: ADSP-21375BSWZ-2B
厂商: Analog Devices Inc
文件页数: 46/56页
文件大小: 0K
描述: IC DSP 32BIT 266MHZ 208-MQFP
产品培训模块: SHARC Processor Overview
标准包装: 36
系列: SHARC®
类型: 浮点
接口: DAI,DPI
时钟速率: 266MHz
非易失内存: ROM(256 kB)
芯片上RAM: 64kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 208-LQFP 裸露焊盘
供应商设备封装: 208-LQFP-EP(28x28)
包装: 托盘
Universal Asynchronous Receiver-Transmitter
(UART) Port—Receive and Transmit Timing
Figure 33 describes UART port receive and transmit operations.
The maximum baud rate is PCLK/16 where PCLK = 1/t PCLK . As
shown in Figure 33 there is some latency between the
Table 39. UART Port
generation of internal UART interrupts and the external data
operations. These latencies are negligible at the data transmis-
sion rates for the UART.
Parameter
Min
Max
Unit
Timing Requirement
t TXD 1
Incoming Data Pulse Width
16t PCLK –1
ns
Switching Characteristic
t RXD 1
Incoming Data Pulse Width
16t PCLK –1
ns
1
UART signals TXD and RXD are routed through DPI P14-1 pins using the SRU.
DPI_P14–1
[RxD]
DATA (5–8)
STOP
RECEIVE
INTERNAL
UART RECEIVE
INTERRUPT
t RXD
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY FIFO READ
START
DPI_P14–1
[TxD]
DATA (5–8)
STOP (1–2)
TRANSMIT
INTERNAL
UART TRANSMIT
INTERRUPT
t TXD
UARTTRANSMITBITSETBYPROGRAM;
CLEARED BY WRITE TO TRANSMIT
Figure 33. UART Port—Receive and Transmit Timing
Rev. D | Page 46 of 56 | April 2013
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