參數(shù)資料
型號(hào)： SC16C754
廠商： NXP Semiconductors N.V.
英文描述： Quad UART with 64-byte FIFO
中文描述： 四UART的64字節(jié)FIFO
文件頁(yè)數(shù)： 23/49頁(yè)
文件大?。?/td> 622K
代理商： SC16C754
Philips Semiconductors
SC16C754
Quad UART with 64-byte FIFO
Product data
Rev. 04 — 19 June 2003
23 of 49
9397 750 11618
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
7.3 FIFO control register (FCR)
This is a write-only register that is used for enabling the FIFOs, clearing the FIFOs,
setting transmitter and receiver trigger levels, and selecting the type of DMA
signalling.
Table 11
shows FIFO control register bit settings.
Table 11:
Bit
7-6
FIFO Control Register bits description
Symbol
Description
FCR[7]
(MSB),
FCR[6]
(LSB)
10 - 56 characters
11 - 60 characters
FCR[5]
(MSB),
FCR[4]
(LSB)
10 - 32 spaces
11 - 56 spaces
FCR[5-4] can only be modified and enabled when EFR[4] is set. This is
because the transmit trigger level is regarded as an enhanced function.
FCR[3]
DMA mode select.
Logic 0 = Set DMA mode ‘0’
Logic 1 = Set DMA mode ‘1’
FCR[2]
Reset TX FIFO.
Logic 0 = No FIFO transmit reset (normal default condition).
Logic 1 = Clears the contents of the transmit FIFO and resets the
FIFO counter logic (the transmit shift register is not cleared or
altered). This bit will return to a logic 0 after clearing the FIFO.
FCR[1]
Reset RX FIFO.
Logic 0 = No FIFO receive reset (normal default condition).
Logic 1 = Clears the contents of the receive FIFO and resets the FIFO
counter logic (the receive shift register is not cleared or altered). This
bit will return to a logic 0 after clearing the FIFO.
FCR[0]
FIFO enable.
Logic 0 = Disable the transmit and receive FIFO (normal default
condition).
Logic 1 = Enable the transmit and receive FIFO.
RCVR trigger. Sets the trigger level for the RX FIFO.
00 - 8 characters
01 - 16 characters
5-4
TX trigger. Sets the trigger level for the TX FIFO.
00 - 8 spaces
01 - 16 spaces
3
2
1
0
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參數(shù)描述
SC16C754B 制造商:PHILIPS 制造商全稱(chēng):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
SC16C754BIA68 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C754BIA68,512 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C754BIA68,518 功能描述:UART 接口集成電路 4CH. 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
SC16C754BIA68,529 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
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