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SC16C754BIBM-S Datasheet

  • SC16C754BIBM-S

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  • Philips

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Philips Semiconductors
SC16C754
Quad UART with 64-byte FIFO
Interrupt priority list
IIR[5]
0
0
0
0
0
0
1
IIR[4]
0
0
0
0
0
1
0
IIR[3]
0
1
0
0
0
0
0
IIR[2]
1
1
1
0
0
0
0
IIR[1]
1
0
0
1
0
0
0
IIR[0]
0
0
0
0
0
0
0
Source of the interrupt
Receiver Line Status error
Receiver time-out interrupt
RHR interrupt
THR interrupt
Modem interrupt
Received Xoff signal/
special character
CTS, RTS change of state
from active (LOW) to
inactive (HIGH)
Table 18:
Priority
level
1
2
2
3
4
5
6
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 Xoff-2 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, i.e., 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[0:3])鈥?on
page 10.
Symbol
EFR[7]
9397 750 11618
漏 Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 04 鈥?19 June 2003
29 of 49

SC16C754BIBM-S 产品属性

  • NXP

  • UART 接口集成电路

  • 4

  • 5 Mbps

  • 5.5 V

  • 2.25 V

  • 6 mA

  • + 85 C

  • - 40 C

  • LQFP-64

  • Bulk

  • SMD/SMT

  • 2.5 V, 3.3 V, 5 V

  • 250

  • SC16C754BIBM,151

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