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SC16IS740 Datasheet(PDF) 20 Page - NXP Semiconductors |
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SC16IS740 Datasheet(HTML) 20 Page - NXP Semiconductors |
20 / 63 page SC16IS740_750_760 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 7 — 9 June 2011 20 of 63 NXP Semiconductors SC16IS740/750/760 Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR 8. Register descriptions The programming combinations for register selection are shown in Table 9. [1] MCR[7] can only be modified when EFR[4] is set. [2] Accessible only when ERF[4] = 1 and MCR[2] = 1, that is, EFR[4] and MCR[2] are read/write enables. [3] Available only on SC16IS750/SC16IS760. [4] Accessible only when LCR[7] is logic 1. [5] Accessible only when LCR is set to 1011 1111b (0xBF). Fig 16. Crystal oscillator circuit reference 002aab402 1.8432 MHz C1 22 pF C2 33 pF XTAL1 XTAL2 Table 9. Register map - read/write properties Register name Read mode Write mode RHR/THR Receive Holding Register (RHR) Transmit Holding Register (THR) IER Interrupt Enable Register (IER) Interrupt Enable Register IIR/FCR Interrupt Identification Register (IIR) FIFO Control Register (FCR) LCR Line Control Register (LCR) Line Control Register MCR Modem Control Register (MCR)[1] Modem Control Register[1] LSR Line Status Register (LSR) n/a MSR Modem Status Register (MSR) n/a SPR Scratchpad Register (SPR) Scratchpad Register TCR Transmission Control Register (TCR)[2] Transmission Control Register[2] TLR Trigger Level Register (TLR)[2] Trigger Level Register[2] TXLVL Transmit FIFO Level Register n/a RXLVL Receive FIFO Level Register n/a IODir[3] I/O pin Direction Register I/O pin Direction Register IOState[3] I/O pin States Register n/a IOIntEna[3] I/O Interrupt Enable Register I/O Interrupt Enable Register IOControl[3] I/O pins Control Register I/O pins Control Register EFCR Extra Features Register Extra Features Register DLL divisor latch LSB (DLL)[4] divisor latch LSB[4] DLH divisor latch MSB (DLH)[4] divisor latch MSB[4] EFR Enhanced Feature Register (EFR)[5] Enhanced Feature Register[5] XON1 Xon1 word[5] Xon1 word[5] XON2 Xon2 word[5] Xon2 word[5] XOFF1 Xoff1 word[5] Xoff1 word[5] XOFF2 Xoff2 word[5] Xoff2 word[5] |
Similar Part No. - SC16IS740_11 |
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Similar Description - SC16IS740_11 |
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