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SC16IS752 Datasheet(PDF) 59 Page - NXP Semiconductors |
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SC16IS752 Datasheet(HTML) 59 Page - NXP Semiconductors |
59 / 59 page ![]() 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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