參數(shù)資料
型號： SC16C752IB48
廠商： NXP Semiconductors N.V.
元件分類： 收發(fā)器
英文描述： Dual UART with 64-byte FIFO
封裝： SC16C752IB48<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1<week 17, 2005,;
文件頁數(shù)： 14/47頁
文件大?。?/td> 604K
代理商： SC16C752IB48
Philips Semiconductors
SC16C752
Dual UART with 64-byte FIFO
Product data
Rev. 04 — 20 June 2003
14 of 47
9397 750 11635
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
6.6 DMA operation
There are two modes of DMA operation, DMA mode 0 or DMA mode 1, selected by
FCR[3].
In DMA mode 0 or FIFO disable (FCR[0] = 0) DMA occurs in single character
transfers. In DMA mode 1, multi-character (or block) DMA transfers are managed to
relieve the processor for longer periods of time.
6.6.1
Single DMA transfers (DMA mode 0/FIFO disable)
Figure 9
shows TXRDY and RXRDY in DMA mode 0/FIFO disable.
Transmitter:
When empty, the TXRDY signal becomes active. TXRDY will go inactive
after one character has been loaded into it.
Receiver:
RXRDY is active when there is at least one character in the FIFO. It
becomes inactive when the receiver is empty.
Fig 9.
TXRDY and RXRDY in DMA mode 0/FIFO disable.
TX
wrptr
wrptr
FIFO EMPTY
TXRDY
AT LEAST ONE
LOCATION FILLED
TXRDY
RX
rdptr
rdptr
FIFO EMPTY
RXRDY
AT LEAST ONE
LOCATION FILLED
RXRDY
002aaa232
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C752IB48,128 功能描述:UART 接口集成電路 Dual UART 64-byte FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C752IB48,151 功能描述:UART 接口集成電路 16C 2.5V-5V 2CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C752IB48,157 功能描述:UART 接口集成電路 16C 2.5V-5V 2CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C754 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quad UART with 64-byte FIFO
SC16C754B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
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