參數(shù)資料
型號(hào): SC16C752
廠商: NXP Semiconductors N.V.
英文描述: Dual UART with 64-byte FIFO
中文描述: 雙UART具有64字節(jié)FIFO
文件頁數(shù): 47/47頁
文件大小: 604K
代理商: SC16C752
Koninklijke Philips Electronics N.V. 2003.
Printed in the U.S.A
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner.
The information presented in this document does not form part of any quotation or
contract, is believed to be accurate and reliable and may be changed without notice. No
liability will be accepted by the publisher for any consequence of its use. Publication
thereof does not convey nor imply any license under patent- or other industrial or
intellectual property rights.
Date of release: 20 June 2003
Document order number: 9397 750 11635
Contents
Philips Semiconductors
SC16C752
Dual UART with 64-byte FIFO
1
2
3
4
5
5.1
5.2
6
6.1
6.2
6.2.1
6.2.2
6.3
6.3.1
6.3.2
6.3.3
6.4
6.5
6.5.1
6.5.2
6.6
6.6.1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 6
Trigger levels. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware flow control. . . . . . . . . . . . . . . . . . . . 7
Auto-RTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Auto-CTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Software flow control . . . . . . . . . . . . . . . . . . . . 9
RX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Software flow control example . . . . . . . . . . . . 10
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Interrupt mode operation . . . . . . . . . . . . . . . . 13
Polled mode operation . . . . . . . . . . . . . . . . . . 13
DMA operation . . . . . . . . . . . . . . . . . . . . . . . . 14
Single DMA transfers (DMA mode 0/FIFO
disable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Block DMA transfers (DMA mode 1). . . . . . . . 15
Sleep mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Break and time-out conditions . . . . . . . . . . . . 16
Programmable baud rate generator . . . . . . . . 16
Register descriptions . . . . . . . . . . . . . . . . . . . 18
Receiver holding register (RHR). . . . . . . . . . . 20
Transmit holding register (THR) . . . . . . . . . . . 20
FIFO control register (FCR) . . . . . . . . . . . . . . 21
Line control register (LCR) . . . . . . . . . . . . . . . 22
Line status register (LSR). . . . . . . . . . . . . . . . 23
Modem control register (MCR) . . . . . . . . . . . . 24
Modem status register (MSR). . . . . . . . . . . . . 25
Interrupt enable register (IER) . . . . . . . . . . . . 25
Interrupt identification register (IIR) . . . . . . . . 26
Enhanced feature register (EFR) . . . . . . . . . . 27
Divisor latches (DLL, DLH). . . . . . . . . . . . . . . 28
Transmission control register (TCR) . . . . . . . . 28
Trigger level register (TLR) . . . . . . . . . . . . . . . 28
FIFO ready register. . . . . . . . . . . . . . . . . . . . . 29
Programmer’s guide . . . . . . . . . . . . . . . . . . . . 30
6.6.2
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
8
9
10
11
11.1
12
13
13.1
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 32
Static characteristics . . . . . . . . . . . . . . . . . . . 32
Dynamic characteristics. . . . . . . . . . . . . . . . . 33
Timing diagrams. . . . . . . . . . . . . . . . . . . . . . . 34
Package outline. . . . . . . . . . . . . . . . . . . . . . . . 42
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Introduction to soldering surface mount
packages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 43
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 43
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 44
Package related soldering information. . . . . . 44
Revision history . . . . . . . . . . . . . . . . . . . . . . . 45
Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 46
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
13.2
13.3
13.4
13.5
14
15
16
17
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