SC16IS740_11 datasheet(48/63 Pages) NXP

Part #	SC16IS740

Description	Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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48 / 63 page

SC16IS740_750_760

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Product data sheet

Rev. 7 — 9 June 2011

48 of 63

NXP Semiconductors

SC16IS740/750/760

Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR

Fig 26. SCL delay after reset

002aab437

RESET

SCL

td15

tw(rst)

Rise and fall times refer to VIL and VIH.

Fig 27. I2C-bus timing diagram

SCL

SDA

tHD;STA

tSU;DAT

tHD;DAT

tf

tBUF

tSU;STA

tLOW

tHIGH

tVD;ACK

002aab489

tSU;STO

protocol

START

condition

(S)

bit 7

MSB

(A7)

bit 6

(A6)

bit 0

LSB

(R/W)

acknowledge

(A)

STOP

condition

(P)

1/fSCL

tr

tVD;DAT

tSP

Fig 28. Write to output (SC16IS750 and SC16IS760 only)

002aab255

A

W

SDA

A

GPIOn

DATA

A

IOSTATE REG.

SLAVE ADDRESS

A

td1

Fig 29. Modem input pin interrupt (SC16IS750 and SC16IS760 only)

002aab256

A

W

SDA

A

R

IRQ

td2

S

A

DATA

A

ACK to master

SLAVE ADDRESS

MSR REGISTER

SLAVE ADDRESS

A

td3

MODEM pin

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