SC16C754BIBM-S Datasheet

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Philips Semiconductors

SC16C754

Quad UART with 64-byte FIFO

Register programming guide

鈥ontinued

Actions

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 TLR (07) to VALUE

Set MCR (04) to temp3

Set LCR (03) to BF

Set EFR (02) to temp2

Set LCR (03) to temp1

Table 23:

Command

Set TX FIFO and RX FIFO thresholds

to VALUE

Read FIFO Rdy register

Read MCR (04), save in temp1

Set temp2 = temp1

脳

EF

[1]

Set MCR (04) = 40 + temp2

Read FFR (07), save in temp2

Pass temp2 back to host

Set MCR (04) to temp1

Set prescaler value to divide-by-1

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 temp3

脳

7F

[1]

Set LCR (03) to BF

Set EFR (02) to temp2

Set LCR (03) to temp1

Set prescaler value to divide-by-4

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 temp3 + 80

Set LCR (03) to BF

Set EFR (02) to temp2

Set LCR (03) to temp1

[1]

脳

sign here means bit-AND.

9397 750 11618

漏 Koninklijke Philips Electronics N.V. 2003. All rights reserved.

Product data

Rev. 04 鈥?19 June 2003

33 of 49

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