sc16c850lib NXP Semiconductors, sc16c850lib Datasheet - Page 37

• Manufacturer Part Number: sc16c850lib
• Description: Sc16c850l 1.8 V Single Uart, 5 Mbit/s Max. With 128-byte Fifos, Infrared Irda And 16 Mode Or 68 Mode Parallel Bus Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
SC16C850L_4
Product data sheet
7.23 SC16C850L external reset condition and software reset
These two reset methods are identical and will reset the internal registers as indicated in
Table
Table 33.
Table 34.
Register
IER
FCR
ISR
LCR
MCR
LSR
MSR
EFCR
SPR
DLL
DLM
TXLVLCNT
RXLVLCNT
EFR
Xon1
Xon2
Xoff1
Xoff2
TXINTLVL
RXINTLVL
FLWCNTH
FLWCNTL
CLKPRES
RS485TIME
AFCR2
AFCR1
Output
TX
RTS
DTR
INT
IRQ
33.
Reset state for registers
Reset state for outputs
Reset state
IER[7:0] = 0
FCR[7:0] = 0
ISR[7:1] = 0; ISR[0] = 1
LCR[7:0] = 0
MCR[7:0] = 0
LSR[7] = 0; LSR[6:5] = 1; LSR[4:0] = 0
MSR[7:4] = input signals; MSR[3:0] = 0
EFCR[7:0] = 0
SPR[7:0] = 1
undefined
undefined
TXLVLCNT[7:0] = 0
RXLVLCNT[7:0] = 0
EFR[7:0] = 0
undefined
undefined
undefined
undefined
TXINTLVL[7:0] = 0
RXINTLVL[7:0] = 0
FLWCNTH[7:0] = 0
FLWCNTL[7:0] = 0
CLKPRES[7:0] = 0
RS485TIME[7:0] = 0
AFCR2[7:0] = 0
AFCR1[7:0] = 0
Reset state
logic 1
logic 1
logic 1
logic 0
open-drain
1.8 V single UART with 128-byte FIFOs and IrDA encoder/decoder
Rev. 04 — 13 December 2007
SC16C850L
© NXP B.V. 2007. All rights reserved.
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