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参数资料
型号： DTMFDECODER-RD
厂商： Silicon Laboratories Inc
文件页数： 37/178页
文件大小： 0K
描述： KIT REF DESIGN DTMF DECODER
应用说明： DTMF Decoder Ref Design AppNote
标准包装： 1
主要目的： 电信，DTMF 解码器
嵌入式： 否
已用 IC / 零件： C8051F300
主要属性： 8kHz 采样速率模数转换器
次要属性： 16 个 Goertzel 滤波器
已供物品： 板，软件
产品目录页面： 627 (CN2011-ZH PDF)
相关产品： 336-1535-5-ND - IC 8051 MCU 8K FLASH 14-SOIC
C8051F300-GMR-ND - IC 8051 MCU 8K FLASH 11QFN
336-1245-ND - IC 8051 MCU 8K FLASH 11QFN
其它名称： 336-1283
Rev. 2.9
131
C8051F300/1/2/3/4/5
14. UART0
UART0 is an asynchronous, full duplex serial port offering modes 1 and 3 of the standard 8051 UART.
Enhanced baud rate support allows a wide range of clock sources to generate standard baud rates (details
in Section “14.1. Enhanced Baud Rate Generation” on page 132). Received data buffering allows
UART0 to start reception of a second incoming data byte before software has finished reading the previous
data byte.
UART0 has two associated SFRs: Serial Control Register 0 (SCON0) and Serial Data Buffer 0 (SBUF0).
The single SBUF0 location provides access to both transmit and receive registers. Reading SBUF0
accesses the buffered Receive register; writing SBUF0 accesses the Transmit register.
With UART0 interrupts enabled, an interrupt is generated each time a transmit is completed (TI0 is set in
SCON0), or a data byte has been received (RI0 is set in SCON0). The UART0 interrupt flags are not
cleared by hardware when the CPU vectors to the interrupt service routine. They must be cleared manually
by software, allowing software to determine the cause of the UART0 interrupt (transmit complete or receive
complete).
UART Baud
Rate Generator
RI
SCON0
RI0
TI0
RB
8
0
TB
8
0
RE
N0
MCE
0
S0M
O
DE
Tx Control
Tx Clock
Send
SBUF
(TX Shift)
Start
Data
Write to
SBUF
Crossbar
TX
Shift
Zero Detector
Tx IRQ
SET
Q
D
CLR
Stop Bit
TB8
SFR Bus
Serial
Port
Interrupt
TI
Port I/O
Rx Control
Start
Rx Clock
Load
SBUF
Shift
0x1FF
RB8
Rx IRQ
Input Shift Register
(9 bits)
Load SBUF0
Read
SBUF
SFR Bus
Crossbar
RX
SBUF
(RX Latch)
Figure 14.1. UART0 Block Diagram
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参数描述
DTMG5812L WAF 制造商:ON Semiconductor 功能描述:
DTMG5852L WAF 制造商:ON Semiconductor 功能描述:
DTMH04-2PA 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE DTM HI TEMP A KEY 2WAY 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE, DTM HI TEMP, A KEY, 2WAY, Series:DTMH, No. of Positions:2, Gender:Receptacle, No. of Rows:1 , RoHS Compliant: Yes
DTMH04-2PB 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE DTM HI TEMP B KEY 2WAY 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE, DTM HI TEMP, B KEY, 2WAY 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE, DTM HI TEMP, B KEY, 2WAY; Series:DTMH; Gender:Receptacle; No. of Contacts:2; No. of Rows:1; Contact Gender:Pin; Connector Mounting:Cable; Connector Shell Size:-; Contact Termination:Crimp; Contact Material:Copper; Contact;RoHS Compliant: Yes
DTMH04-2PC 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE DTM HI TEMP C KEY 2WAY 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE, DTM HI TEMP, C KEY, 2WAY 制造商:TE Connectivity / Deutsch 功能描述:RECEPTACLE, DTM HI TEMP, C KEY, 2WAY; Series:DTMH; Gender:Receptacle; No. of Contacts:2; No. of Rows:1; Contact Gender:Pin; Connector Mounting:Cable; Connector Shell Size:-; Contact Termination:Crimp; Contact Material:Copper; Contact;RoHS Compliant: Yes
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