SC68C752BIB48 PHILIPS [NXP Semiconductors], SC68C752BIB48 Datasheet - Page 33

• Manufacturer Part Number: SC68C752BIB48
• Description: 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs and Motorola uP interface
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
SC68C752B_3
Product data sheet
Table 24:
[1]
Command
Set TX FIFO and RX FIFO thresholds
to VALUE
Read FIFO Rdy register
Set prescaler value to divide-by-1
Set prescaler value to divide-by-4
sign here means bit-AND.
Register programming guide
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs
Rev. 03 — 29 November 2005
…continued
Actions
read LCR (03h), save in temp1
set LCR (03h) to BFh
read EFR (02h), save in temp2
set EFR (02h) to 10h + temp2
set LCR (03h) to 00h
read MCR (04h), save in temp3
set MCR (04h) to 40h + temp3
set TLR (07h) to VALUE
set MCR (04h) to temp3
set LCR (03h) to BFh
set EFR (02h) to temp2
set LCR (03h) to temp1
read MCR (04h), save in temp1
set temp2 = temp1
set MCR (04h) = 40h + temp2
read FFR (07h), save in temp2
pass temp2 back to host
set MCR (04h) to temp1
read LCR (03h), save in temp1
set LCR (03h) to BF
read EFR (02h), save in temp2
set EFR (02h) to 10h + temp2
set LCR (03h) to 00h
read MCR (04h), save in temp3
set MCR (04h) to temp3
set LCR (03h) to BFh
set EFR (02h) to temp2
set LCR (03h) to temp1
read LCR (03h), save in temp1
set LCR (03h) to BFh
read EFR (02h), save in temp2
set EFR (02h) to 10h + temp2
set LCR (03h) to 00h
read MCR (04h), save in temp3
set MCR (04h) to temp3 + 80h
set LCR (03h) to BFh
set EFR (02h) to temp2
set LCR (03h) to temp1
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
EFh
SC68C752B
[1]
7Fh
[1]
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