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SC16IS752 Datasheet(PDF) 59 Page - NXP Semiconductors

Part No. SC16IS752
Description  Dual UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

SC16IS752 Datasheet(HTML) 59 Page - NXP Semiconductors

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NXP Semiconductors
SC16IS752/SC16IS762
Dual UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
© NXP B.V. 2008.
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: 19 May 2008
Document identifier: SC16IS752_SC16IS762_7
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
22. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.1
General features . . . . . . . . . . . . . . . . . . . . . . . . 1
2.2
I2C-bus features . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3
SPI features . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6
7
Functional description . . . . . . . . . . . . . . . . . . . 8
7.1
Trigger levels. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.2
Hardware flow control . . . . . . . . . . . . . . . . . . . . 8
7.2.1
Auto-RTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.2.2
Auto-CTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.3
Software flow control . . . . . . . . . . . . . . . . . . . 10
7.3.1
Receive flow control . . . . . . . . . . . . . . . . . . . . 11
7.3.2
Transmit flow control . . . . . . . . . . . . . . . . . . . . 11
7.4
Hardware Reset, Power-On Reset (POR)
and Software Reset . . . . . . . . . . . . . . . . . . . . 13
7.5
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.5.1
Interrupt mode operation . . . . . . . . . . . . . . . . 15
7.5.2
Polled mode operation . . . . . . . . . . . . . . . . . . 15
7.6
Sleep mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.7
Break and time-out conditions . . . . . . . . . . . . 16
7.8
Programmable baud rate generator . . . . . . . . 16
8
Register descriptions . . . . . . . . . . . . . . . . . . . 19
8.1
Receive Holding Register (RHR) . . . . . . . . . . 22
8.2
Transmit Holding Register (THR) . . . . . . . . . . 22
8.3
Interrupt Enable Register (IER) . . . . . . . . . . . 22
8.4
FIFO Control Register (FCR) . . . . . . . . . . . . . 23
8.5
Interrupt Identification Register (IIR). . . . . . . . 24
8.6
Line Control Register (LCR) . . . . . . . . . . . . . . 24
8.7
Modem Control Register (MCR) . . . . . . . . . . . 26
8.8
Line Status Register (LSR) . . . . . . . . . . . . . . . 27
8.9
Modem Status Register (MSR). . . . . . . . . . . . 28
8.10
Scratchpad Register (SPR) . . . . . . . . . . . . . . 28
8.11
Transmission Control Register (TCR) . . . . . . . 29
8.12
Trigger Level Register (TLR). . . . . . . . . . . . . . 29
8.13
Transmitter FIFO Level register (TXLVL) . . . . 30
8.14
Receiver FIFO Level register (RXLVL) . . . . . . 30
8.15
Programmable I/O pins Direction register
(IODir) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.16
Programmable I/O pins State register
(IOState) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.17
I/O Interrupt Enable register (IOIntEna) . . . . . 31
8.18
I/O Control register (IOControl) . . . . . . . . . . . 31
8.19
Extra Features Control Register (EFCR) . . . . 32
8.20
Division registers (DLL, DLH). . . . . . . . . . . . . 32
8.21
Enhanced Features Register (EFR) . . . . . . . . 33
9
RS-485 features . . . . . . . . . . . . . . . . . . . . . . . . 33
9.1
Auto RS-485 RTS control . . . . . . . . . . . . . . . . 33
9.2
RS-485 RTS output inversion. . . . . . . . . . . . . 33
9.3
Auto RS-485. . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.3.1
Normal multidrop mode . . . . . . . . . . . . . . . . . 34
9.3.2
Auto address detection. . . . . . . . . . . . . . . . . . 34
10
I2C-bus operation . . . . . . . . . . . . . . . . . . . . . . 35
10.1
Data transfers. . . . . . . . . . . . . . . . . . . . . . . . . 35
10.2
Addressing and transfer formats . . . . . . . . . . 37
10.3
Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.4
Use of subaddresses . . . . . . . . . . . . . . . . . . . 39
11
SPI operation . . . . . . . . . . . . . . . . . . . . . . . . . . 41
12
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 42
13
Static characteristics . . . . . . . . . . . . . . . . . . . 43
14
Dynamic characteristics . . . . . . . . . . . . . . . . . 45
15
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 52
16
Handling information . . . . . . . . . . . . . . . . . . . 54
17
Soldering of SMD packages . . . . . . . . . . . . . . 54
17.1
Introduction to soldering. . . . . . . . . . . . . . . . . 54
17.2
Wave and reflow soldering . . . . . . . . . . . . . . . 54
17.3
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 54
17.4
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 55
18
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 56
19
Revision history . . . . . . . . . . . . . . . . . . . . . . . 57
20
Legal information . . . . . . . . . . . . . . . . . . . . . . 58
20.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 58
20.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
20.3
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 58
20.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 58
21
Contact information . . . . . . . . . . . . . . . . . . . . 58
22
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59


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