SC16C2550BIBS,157 NXP Semiconductors, SC16C2550BIBS,157 Datasheet - Page 24

• Manufacturer Part Number: SC16C2550BIBS,157
• Description: IC DUART SOT617-1
• Manufacturer: NXP Semiconductors

Specifications of SC16C2550BIBS,157

• Features: False-start Bit Detection
• Number Of Channels: 2, DUART
• Fifo's: 16 Byte
• Voltage - Supply: 3.5 V ~ 4.5 V
• With Auto Flow Control: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935280309157; SC16C2550BIBS; SC16C2550BIBS

NXP Semiconductors
SC16C2550B_5
Product data sheet
7.10 SC16C2550B external reset condition
7.9 Scratchpad Register (SPR)
The SC16C2550B provides a temporary data register to store 8 bits of user information.
Table 21.
Table 22.
Register
IER
FCR
ISR
LCR
MCR
LSR
MSR
SPR
DLL
DLM
Output
TXA, TXB
OP2A, OP2B
RTSA, RTSB
DTRA, DTRB
INTA, INTB
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
SFR[7:0] = 1
DLL[7:0] = X
DLM[7:0] = X
Reset state
logic 1
logic 1
logic 1
logic 1
3-state condition
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
Rev. 05 — 12 January 2009
SC16C2550B
© NXP B.V. 2009. All rights reserved.
24 of 43