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SC16C754BIB80 Datasheet

  • SC16C754BIB80

  • 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte...

  • 249.81KB

  • 50页

  • PHILIPS

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Philips Semiconductors
SC16C754B
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
7.10 Enhanced Feature Register (EFR)
This 8-bit register enables or disables the enhanced features of the UART.
Table 19
shows
the Enhanced Feature Register bit settings.
Table 19:
Bit
7
Enhanced Feature Register bits description
Description
CTS 铿俹w control enable.
logic 0 = CTS 铿俹w control is disabled (normal default condition)
logic 1 = CTS 铿俹w control is enabled. Transmission will stop when a HIGH
signal is detected on the CTS pin.
6
EFR[6]
RTS 铿俹w control enable.
logic 0 = RTS 铿俹w control is disabled (normal default condition)
logic 1 = RTS 铿俹w control is enabled. The RTS pin goes HIGH when the
receiver FIFO HALT trigger level TCR[3:0] is reached, and goes LOW when
the receiver FIFO RESUME transmission trigger level TCR[7:4] is reached.
5
EFR[5]
Special character detect.
logic 0 = special character detect disabled (normal default condition)
logic 1 = special character detect enabled. Received data is compared with
Xoff2 data. If a match occurs, the received data is transferred to FIFO and
IIR[4] is set to a logical 1 to indicate a special character has been detected.
4
EFR[4]
Enhanced functions enable bit.
logic 0 = disables enhanced functions and writing to IER[7:4], FCR[5:4],
MCR[7:5].
logic 1 = enables the enhanced function IER[7:4], FCR[5:4], and MCR[7:5]
can be modi铿乪d, that is, this bit is therefore a write enable.
3:0
EFR[3:0]
Combinations of software 铿俹w control can be selected by programming these
bits. See
Table 3 鈥淪oftware 铿俹w control options (EFR[3:0])鈥?
Symbol
EFR[7]
7.11 Divisor latches (DLL, DLH)
These are two 8-bit registers which store the 16-bit divisor for generation of the baud clock
in the baud rate generator. DLH stores the most signi铿乧ant part of the divisor. DLL stores
the least signi铿乧ant part of the divisor.
Note that DLL and DLH can only be written to before Sleep mode is enabled, that is,
before IER[4] is set.
9397 750 14668
漏 Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 鈥?13 June 2005
31 of 50

SC16C754BIB80 产品属性

  • 4

  • 5Mbps

  • DMA 信号传输能力、软件可选择传输速率发生器

  • 2.25V 到 5.5V

  • -40°C 到 +85°C

  • LQFP

  • 80

  • No SVHC (18-Jun-2012)

  • 异步

  • 16

  • LQFP

  • -40°C

  • 85°C

  • 5Mbps

  • 80MHz

  • 5Mbps

  • 5V

  • 5V

  • 2.5V

  • 16C754

  • 表??安装

  • 16C754

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