sc16c754-04 NXP Semiconductors, sc16c754-04 Datasheet - Page 32
sc16c754-04
Manufacturer Part Number
sc16c754-04
Description
Sc16c754 Quad Uart With 64-byte Fifo
Manufacturer
NXP Semiconductors
Datasheet
1.SC16C754-04.pdf
(49 pages)
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Philips Semiconductors
8. Programmer’s guide
9397 750 11618
Product data
The base set of registers that is used during high-speed data transfer have a
straightforward access method. The extended function registers require special
access bits to be decoded along with the address lines. The following guide will help
with programming these registers. Note that the descriptions below are for individual
register access. Some streamlining through interleaving can be obtained when
programming all the registers.
Table 23:
Command
Set baud rate to VALUE1, VALUE2
Set Xoff-1, Xon-1 to VALUE1, VALUE2
Set Xoff-2, Xon-2 to VALUE1, VALUE2
Set software flow control mode to
VALUE
Set flow control threshold to VALUE
Register programming guide
Rev. 04 — 19 June 2003
Actions
Read LCR (03), save in temp
Set LCR (03) to 80
Set DLL (00) to VALUE1
SET DLM (01) to VALUE2
Set LCR (03) to temp
Read LCR (03), save in temp
Set LCR (03) to BF
Set Xoff-1 (06) to VALUE1
SET Xon-1 (04) to VALUE2
Set LCR (03) to temp
Read LCR (03), save in temp
Set LCR (03) to BF
Set Xoff-2 (07) to VALUE1
SET Xon-2 (05) to VALUE2
Set LCR (03) to temp
Read LCR (03), save in temp
Set LCR (03) to BF
Set EFR (02) to VALUE
Set LCR (03) to temp
Read LCR (03), save in temp1
Set LCR (03) to BF
Read EFR (02), save in temp2
Set EFR (02) to 10 + temp2
Set LCR (03) to 00
Read MCR (04), save in temp3
Set MCR (04) to 40 + temp3
Set TCR (06) to VALUE
Set MCR (04) to temp3
Set LCR (03) to BF
Set EFR (02) to temp2
Set LCR (03) to temp1
Quad UART with 64-byte FIFO
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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