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| 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)： | 26/49頁(yè) |
| 文件大?。?/td> | 622K |
| 代理商： | SC16C754 |
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Philips Semiconductors
SC16C754
Quad UART with 64-byte FIFO
Product data
Rev. 04 — 19 June 2003
26 of 49
9397 750 11618
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
7.6 Modem control register (MCR)
The MCR controls the interface with the mode, data set, or peripheral device that is
emulating the modem.
Table 14
shows modem control register bit settings.
[1]
MCR[7:5] can only be modified when EFR[4] is set, i.e., EFR[4] is a write enable.
Table 14:
Bit
7
Modem Control Register bits description
Symbol
Description
MCR[7]
[1]
Clock select.
Logic 0 = Divide-by-1 clock input.
Logic 1 = Divide-by-4 clock input.
MCR[6]
[1]
TCR and TLR enable.
Logic 0 = no action.
Logic 1 = Enable access to the TCR and TLR registers.
MCR[5]
[1]
Xon Any.
Logic 0 = Disable Xon Any function.
Logic 1 = Enable Xon Any function.
MCR[4]
Enable loop-back.
Logic 0 = Normal operating mode.
Logic 1 = Enable local loop-back mode (internal). In this mode the
MCR[3:0] signals are looped back into MSR[7:4] and the TX output
is looped back to the RX input internally.
MCR[3]
IRQ enable OP.
Logic 0 = Forces INTA-INTB outputs to the 3-State mode and OP
output to HIGH state.
Logic 1 = Forces the INTA-INTB outputs to the active state and OP
output to LOW state. In loop-back mode, controls MSR[7].
MCR[2]
FIFO Ready enable.
Logic 0 = Disable the FIFO Rdy register.
Logic 1 = Enable the FIFO Rdy register.
In loop-back mode, controls MSR[6].
MCR[1]
RTS
Logic 0 = Force RTS output to inactive (HIGH).
Logic 1 = Force RTS output to active (LOW).
In loop-back mode, controls MSR[4]. If Auto-RTS is enabled, the
RTS output is controlled by hardware flow control.
MCR[0]
DTR
Logic 0 = Force DTR output to inactive (HIGH).
Logic 1 = Force DTR output to active (LOW).
In loop-back mode, controls MSR[5].
6
5
4
3
2
1
0
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| SC16C754IA68 | Quad UART with 64-byte FIFO |
| SC16C754IB80 | Quad UART with 64-byte FIFO |
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相關(guān)代理商/技術(shù)參數(shù) |
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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