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參數(shù)資料
| 型號： | 935270056512 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQCC68 |
| 封裝： | PLASTIC, MS-018, SOT-188-2, LCC-68 |
| 文件頁數(shù)： | 27/52頁 |
| 文件大小： | 680K |
| 代理商： | 935270056512 |
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Philips Semiconductors
SC16C754
Quad UART with 64-byte FIFO
Product data
Rev. 02 — 14 March 2003
33 of 49
9397 750 11192
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
[1]
× sign here means bit-AND.
Set TX FIFO and RX FIFO thresholds
to VALUE
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
Read FIFO Rdy register
Read MCR (04), save in temp1
Set temp2 = temp1
× 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
× 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
Table 23:
Register programming guide…continued
Command
Actions
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