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SC16C852LIB датащи(PDF) 60 Page - NXP Semiconductors

номер детали SC16C852LIB
подробное описание детали  1.8 V dual UART, 5 Mbit/s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
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SC16C852LIB датащи(HTML) 60 Page - NXP Semiconductors

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NXP Semiconductors
SC16C852L
1.8 V dual UART with 128-byte FIFOs and IrDA encoder/decoder
© NXP B.V. 2007.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 25 January 2007
Document identifier: SC16C852L_2
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
17. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
4
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
5.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 7
6
Functional description . . . . . . . . . . . . . . . . . . 10
6.1
UART A-B functions . . . . . . . . . . . . . . . . . . . . 10
6.2
Extended mode (128-byte FIFO) . . . . . . . . . . 11
6.3
Internal registers . . . . . . . . . . . . . . . . . . . . . . . 11
6.4
FIFO operation . . . . . . . . . . . . . . . . . . . . . . . . 12
6.4.1
32-byte FIFO mode. . . . . . . . . . . . . . . . . . . . . 12
6.4.2
128-byte FIFO mode. . . . . . . . . . . . . . . . . . . . 12
6.5
Hardware flow control . . . . . . . . . . . . . . . . . . . 13
6.6
Software flow control . . . . . . . . . . . . . . . . . . . 13
6.7
Special character detect . . . . . . . . . . . . . . . . . 14
6.8
Interrupt priority and time-out interrupts . . . . . 14
6.9
Programmable baud rate generator . . . . . . . . 15
6.10
DMA operation . . . . . . . . . . . . . . . . . . . . . . . . 17
6.11
Loopback mode . . . . . . . . . . . . . . . . . . . . . . . 17
6.12
Sleep mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.12.1
Conditions to enter Sleep mode . . . . . . . . . . . 19
6.12.2
Conditions to resume normal operation . . . . . 19
6.13
Low power feature . . . . . . . . . . . . . . . . . . . . . 19
6.14
RS-485 features . . . . . . . . . . . . . . . . . . . . . . . 20
6.14.1
Auto RS-485 RTS control . . . . . . . . . . . . . . . . 20
6.14.2
RS-485 RTS inversion . . . . . . . . . . . . . . . . . . 20
6.14.3
Auto 9-bit mode (RS-485) . . . . . . . . . . . . . . . . 20
6.14.3.1
Normal Multi-drop mode . . . . . . . . . . . . . . . . . 20
6.14.3.2
Auto address detection . . . . . . . . . . . . . . . . . . 21
7
Register descriptions . . . . . . . . . . . . . . . . . . . 21
7.1
Transmit (THR) and Receive (RHR) Holding
Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.2
Interrupt Enable Register (IER) . . . . . . . . . . . 24
7.2.1
IER versus Transmit/Receive FIFO interrupt
mode operation. . . . . . . . . . . . . . . . . . . . . . . . 25
7.2.2
IER versus Receive/Transmit FIFO polled
mode operation. . . . . . . . . . . . . . . . . . . . . . . . 25
7.3
FIFO Control Register (FCR) . . . . . . . . . . . . . 26
7.3.1
DMA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3.1.1
Mode 0 (FCR bit 3 = 0) . . . . . . . . . . . . . . . . . . 26
7.3.1.2
Mode 1 (FCR bit 3 = 1) . . . . . . . . . . . . . . . . . . 26
7.3.2
FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4
Interrupt Status Register (ISR) . . . . . . . . . . . . 28
7.5
Line Control Register (LCR) . . . . . . . . . . . . . . 29
7.6
Modem Control Register (MCR) . . . . . . . . . . . 30
7.7
Line Status Register (LSR) . . . . . . . . . . . . . . 31
7.8
Modem Status Register (MSR) . . . . . . . . . . . 32
7.9
Extra Feature Control Register (EFCR) . . . . . 33
7.10
Scratchpad Register (SPR) . . . . . . . . . . . . . . 33
7.11
Division Latch (DLL and DLM) . . . . . . . . . . . . 33
7.12
Transmit FIFO Level Count (TXLVLCNT) . . . . 33
7.13
Receive FIFO Level Count (RXLVLCNT) . . . . 33
7.14
Enhanced Feature Register (EFR). . . . . . . . . 34
7.15
Transmit Interrupt Level Register
(TXINTLVL) . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.16
Receive Interrupt Level Register
(RXINTLVL) . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.17
Flow Control Trigger Level High
(FLWCNTH) . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.18
Flow Control Trigger Level Low
(FLWCNTL) . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.19
Clock Prescaler (CLKPRES) . . . . . . . . . . . . . 36
7.20
RS-485 Turn-around Time Delay
(RS485TIME) . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.21
Advanced Feature Control Register 2
(AFCR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.22
Advanced Feature Control Register 1
(AFCR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.23
SC16C852L external reset condition and
Software Reset. . . . . . . . . . . . . . . . . . . . . . . . 39
8
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 40
9
Static characteristics . . . . . . . . . . . . . . . . . . . 40
10
Dynamic characteristics . . . . . . . . . . . . . . . . . 41
10.1
Timing diagrams. . . . . . . . . . . . . . . . . . . . . . . 43
11
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 53
12
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.1
Introduction to soldering. . . . . . . . . . . . . . . . . 55
12.2
Wave and reflow soldering . . . . . . . . . . . . . . . 55
12.3
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 55
12.4
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 56
13
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 57
14
Revision history . . . . . . . . . . . . . . . . . . . . . . . 58
15
Legal information . . . . . . . . . . . . . . . . . . . . . . 59
15.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 59
15.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
15.3
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 59
15.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 59
16
Contact information . . . . . . . . . . . . . . . . . . . . 59
17
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60



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