SC16IS752 datasheet(19/59 Pages) NXP

Part #	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

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SC16IS752_SC16IS762_7

Product data sheet

Rev. 07 — 19 May 2008

19 of 59

NXP Semiconductors

SC16IS752/SC16IS762

Dual 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]

Accessible only when LCR[7] is logic 1.

[4]

Accessible only when LCR is set to 1011 1111b (0xBF).

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

I/O pin Direction register

IOState

I/O pins State register

n/a

IOIntEna

I/O Interrupt Enable register

Interrupt Enable register

IOControl

I/O pins Control register

EFCR

Extra Features Control Register

DLL

Divisor Latch LSB (DLL)[3]

Divisor Latch LSB[3]

DLH

Divisor Latch MSB (DLH)[3]

Divisor Latch MSB[3]

EFR

Enhanced Features Register (EFR)[4]

Enhanced Features Register[4]

XON1

Xon1 word[4]

XON2

Xon2 word[4]

XOFF1

Xoff1 word[4]

XOFF2

Xoff2 word[4]

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