SC16C850V NXP Semiconductors, SC16C850V Datasheet - Page 34

• Manufacturer Part Number: SC16C850V
• Description: XScale VLIO bus interface
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
SC16C850V_4
Product data sheet
7.23 SC16C850V 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
33.
Reset state for registers
Reset state for outputs
Single UART with 128-byte FIFOs, IrDA, and XScale VLIO bus interface
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
3-state condition
Rev. 04 — 14 January 2008
SC16C850V
© NXP B.V. 2008. All rights reserved.
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