SC16C852LIB datasheet(39/60 Pages) PHILIPS

부품명	SC16C852LIB

상세설명	1.8 V dual UART, 5 Mbit/s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface

PDF	60 Pages

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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39 / 60 page

SC16C852L_2

Product data sheet

Rev. 02 — 25 January 2007

39 of 60

NXP Semiconductors

SC16C852L

1.8 V dual UART with 128-byte FIFOs and IrDA encoder/decoder

7.23 SC16C852L external reset condition and Software Reset

These two reset methods are identical and will reset the internal registers as indicated in

Table 35.

Reset state for registers

Reset state

IER

IER[7:0] = 0

FCR

FCR[7:0] = 0

ISR

ISR[7:1] = 0; ISR[0] = 1

LCR

LCR[7:0] = 0

MCR

MCR[7:0] = 0

LSR

LSR[7] = 0; LSR[6:5] = 1; LSR[4:0] = 0

MSR

MSR[7:4] = input signals; MSR[3:0] = 0

EFCR

EFCR[7:0] = 0

SPR

SPR[7:0] = 1

DLL

undeﬁned

DLM

undeﬁned

TXLVLCNT

TXLVLCNT[7:0] = 0

RXLVLCNT

RXLVLCNT[7:0] = 0

EFR

EFR[7:0] = 0

Xon1

undeﬁned

Xon2

undeﬁned

Xoff1

undeﬁned

Xoff2

undeﬁned

TXINTLVL

TXINTLVL[7:0] = 0

RXINTLVL

RXINTLVL[7:0] = 0

FLWCNTH

FLWCNTH[7:0] = 0

FLWCNTL

FLWCNTL[7:0] = 0

CLKPRES

CLKPRES[7:0] = 0

RS485TIME

RS485TIME[7:0] = 0

AFCR2

AFCR2[7:0] = 0

AFCR1

AFCR1[7:0] = 0

Table 36.

Reset state for outputs

Output

Reset state

TXA, TXB

logic 1

OP2A, OP2B

logic 1

RTSA, RTSB

logic 1

DTRA, DTRB

logic 1

INTA, INTB

3-state condition

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