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參數(shù)資料
| 型號： | SC16C654IB64,128 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64 |
| 文件頁數(shù)： | 19/52頁 |
| 文件大?。?/td> | 647K |
| 代理商： | SC16C654IB64,128 |
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Philips Semiconductors
SC16C654/654D
Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
Product data
Rev. 04 — 19 June 2003
26 of 52
9397 750 11617
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
7.5 Line Control Register (LCR)
The Line Control Register is used to specify the asynchronous data communication
format. The word length, the number of stop bits, and the parity are selected by
writing the appropriate bits in this register.
Table 15:
Line Control Register bits description
Bit
Symbol
Description
7
LCR[7]
Divisor latch enable. The internal baud rate counter latch and
Enhance Feature mode enable.
Logic 0 = Divisor latch disabled (normal default condition).
Logic 1 = Divisor latch and enhanced feature register enabled.
6
LCR[6]
Set break. When enabled, the Break control bit causes a break
condition to be transmitted (the TX output is forced to a logic 0
state). This condition exists until disabled by setting LCR[6] to a
logic 0.
Logic 0 = no TX break condition (normal default condition).
Logic 1 = forces the transmitter output (TX) to a logic 0 for
alerting the remote receiver to a line break condition.
5
LCR[5]
Set parity. If the parity bit is enabled, LCR[5] selects the forced
parity format. Programs the parity conditions (see Table 16).
Logic 0 = parity is not forced (normal default condition).
LCR[5] = logic 1 and LCR[4] = logic 0: parity bit is forced to a
logical 1 for the transmit and receive data.
LCR[5] = logic 1 and LCR[4] = logic 1: parity bit is forced to a
logical 0 for the transmit and receive data.
4
LCR[4]
Even parity. If the parity bit is enabled with LCR[3] set to a logic 1,
LCR[4] selects the even or odd parity format.
Logic 0 = ODD Parity is generated by forcing an odd number of
logic 1s in the transmitted data. The receiver must be
programmed to check the same format (normal default
condition).
Logic 1 = EVEN Parity is generated by forcing an even number
of logic 1s in the transmitted data. The receiver must be
programmed to check the same format.
3
LCR[3]
Parity enable. Parity or no parity can be selected via this bit.
Logic 0 = no parity (normal default condition).
Logic 1 = a parity bit is generated during the transmission,
receiver checks the data and parity for transmission errors.
2
LCR[2]
Stop bits. The length of stop bit is specied by this bit in
conjunction with the programmed word length (see Table 17).
Logic 0 or cleared = default condition.
1-0
LCR[1-0]
Word length bits 1, 0. These two bits specify the word length to be
transmitted or received (see Table 18).
Logic 0 or cleared = default condition.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
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| SC16C750 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFO |
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| SC16C750BIA44 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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 |
| SC16C750BIA44,512 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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 |
| SC16C750BIA44,518 | 功能描述:UART 接口集成電路 1CH. UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據速率: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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