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SC16C652 датащи(PDF) 19 Page - NXP Semiconductors

номер детали SC16C652
подробное описание детали  Dual UART with 32 bytes of transmit and receive FIFOs
PDF  41 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SC16C652 датащи(HTML) 19 Page - NXP Semiconductors

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Philips Semiconductors
SC16C652
Dual UART with 32 bytes of transmit and receive FIFOs
Product data
Rev. 04 — 20 June 2003
19 of 41
9397 750 11634
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
1
FCR[1]
RCVR FIFO reset.
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.
0
FCR[0]
FIFO enable.
Logic 0 = Disable the transmit and receive FIFO (normal default
condition).
Logic 1 = Enable the transmit and receive FIFO. This bit must be a
‘1’ when other FCR bits are written to, or they will not be
programmed.
Table 12:
RCVR trigger levels
FCR[7]
FCR[6]
RX FIFO trigger level (bytes)
008
0116
1024
1128
Table 13:
TX FIFO trigger levels
FCR[5]
FCR[4]
TX FIFO trigger level (bytes)
0016
018
1024
1130
Table 11:
FIFO Control Register bits description…continued
Bit
Symbol
Description



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