參數(shù)資料
型號： SC16C652B
廠商： NXP Semiconductors N.V.
英文描述： 5V, 3.3 V and 2.5V dual UART, 5 Mbit/s (max.),with 32-byte FIFOs and infrared(IrDA) encoder/decoder
中文描述： 5V的，3.3V和2.5V雙，5兆的UART /秒（最大），32字節(jié)的FIFO和紅外線（IrDA）編碼器/解碼器
文件頁數(shù)： 18/44頁
文件大?。?/td> 205K
代理商： SC16C652B
Philips Semiconductors
SC16C652B
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
Product data
Rev. 03 — 10 December 2004
18 of 44
9397 750 14452
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
7.2.2
IER versus Receive/Transmit FIFO polled mode operation
When FCR[0] = logic 1, resetting IER[0:3] enables the SC16C652B in the FIFO
polled mode of operation. In this mode, interrupts are not generated and the user
must poll the LSR register for TX and/or RX data status. Since the receiver and
transmitter have separate bits in the LSR either or both can be used in the polled
mode by selecting respective transmit or receive control bit(s).
LSR[0] will be a logic 1 as long as there is one byte in the receive FIFO.
LSR[1:4] will provide the type of receive errors, or a receive break, if encountered.
LSR[5] will indicate when the transmit FIFO is empty.
LSR[6] will indicate when both the transmit FIFO and transmit shift register are
empty.
LSR[7] will show if any FIFO data errors occurred.
7.3 FIFO Control Register (FCR)
This register is used to enable the FIFOs, clear the FIFOs, set the receive FIFO
trigger levels, and select the DMA mode.
7.3.1
DMA mode
Mode 0 (FCR bit 3 = 0):
Set and enable the interrupt for each single transmit or
receive operation, and is similar to the 16C450 mode. Transmit Ready (TXRDY) will
go to a logic 0 whenever the FIFO (THR, if FIFO is not enabled) is empty. Receive
Ready (RXRDY) will go to a logic 0 whenever the Receive Holding Register (RHR) is
loaded with a character.
Mode 1 (FCR bit 3 = 1):
Set and enable the interrupt in a block mode operation. The
transmit interrupt is set when the transmit FIFO is below the programmed trigger
level. The receive interrupt is set when the receive FIFO fills to the programmed
trigger level. However, the FIFO continues to fill regardless of the programmed level
until the FIFO is full. RXRDY remains a logic 0 as long as the FIFO fill level is above
the programmed trigger level.
相關(guān)PDF資料
PDF描述
SC16C652 Dual UART with 32 bytes of transmit and receive FIFOs
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SC16C654IB64 Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
SC16C654 Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C652BIB48 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH UART 32B 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
SC16C652BIB48,128 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH 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
SC16C652BIB48,151 功能描述:UART 接口集成電路 2CH. UART 32B 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
SC16C652BIB48,157 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH 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
SC16C652BIB48151 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
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