SC16IS752 datasheet(25/59 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]

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SC16IS752_SC16IS762_7

Product data sheet

Rev. 07 — 19 May 2008

25 of 59

NXP Semiconductors

SC16IS752/SC16IS762

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

5

LCR[5]

Set parity. LCR[5] selects the forced parity format (if LCR[3] = logic 1).

logic 0 = parity is not forced (normal default condition).

LCR[5] = logic 1 and LCR[4] = logic 0: parity bit is forced to a logical 1

for the transmit and receive data.

LCR[5] = logic 1 and LCR[4] = logic 1: parity bit is forced to a logical 0

for the transmit and receive data.

4

LCR[4]

Parity type select.

logic 0 = odd parity is generated (if LCR[3] = logic 1)

logic 1 = even parity is generated (if LCR[3] = logic 1)

3

LCR[3]

Parity enable.

logic 0 = no parity (normal default condition)

logic 1 = a parity bit is generated during transmission and the receiver

checks for received parity

2

LCR[2]

Number of Stop bits. Speciﬁes the number of stop bits.

0 to 1 stop bit (word length = 5, 6, 7, 8)

1 to 1.5 stop bits (word length = 5)

1 = 2 stop bits (word length = 6, 7, 8)

1:0

LCR[1:0]

Word length bits 1, 0. These two bits specify the word length to be

transmitted or received (see Table 18).

Table 16.

LCR[5] parity selection

LCR[5]

LCR[4]

LCR[3]

Parity selection

X

0

no parity

0

1

odd parity

0

1

even parity

1

0

1

forced parity ‘1’

1

forced parity ‘0’

Table 17.

LCR[2] stop bit length

LCR[2]

Word length (bits)

Stop bit length (bit times)

0

5, 6, 7, 8

1

15

11

⁄2

1

6, 7, 8

2

Table 18.

LCR[1:0] word length

LCR[1]

LCR[0]

Word length (bits)

005

016

107

118

Table 15.

Line Control Register bits description …continued

Bit

Symbol

Description

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