SC16C850VIBS,128 NXP Semiconductors, SC16C850VIBS,128 Datasheet - Page 25

• Manufacturer Part Number: SC16C850VIBS,128
• Description: IC UART SINGLE W/FIFO 32-HVQFN
• Manufacturer: NXP Semiconductors

Specifications of SC16C850VIBS,128

• Features: Programmable
• Number Of Channels: 1, UART
• Fifo's: 128 Byte
• Protocol: RS485
• Voltage - Supply: 1.8V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Transmitter And Receiver Fifo Counter: Yes
• Data Rate: 5Mbps
• Mounting: Surface Mount
• Pin Count: 32
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283087128; SC16C850VIBS-F; SC16C850VIBS-F

NXP Semiconductors
SC16C850V
Product data sheet
7.6 Modem Control Register (MCR)
Table 17.
This register controls the interface with the modem or a peripheral device.
Table 18.
LCR[1]
0
0
1
1
Bit
7
6
5
3
2
1
0
4
Symbol
MCR[7]
MCR[6]
MCR[5]
MCR[4]
MCR[3]
MCR[2]
MCR[1]
MCR[0]
LCR[1:0] word length
Modem Control Register bits description
LCR[0]
0
1
0
1
Single UART with 128-byte FIFOs, IrDA, and XScale VLIO bus interface
All information provided in this document is subject to legal disclaimers.
Description
Clock select
IR enable (see
Interrupt type.
Loopback. Enable the local Loopback mode (diagnostics). In this mode the
transmitter output (TX) and the receiver input (RX), CTS, DSR, CD, and RI are
disconnected from the SC16C850V I/O pins. Internally the modem data and
control pins are connected into a loopback data configuration (see
this mode, the receiver and transmitter interrupts remain fully operational. The
Modem Control Interrupts are also operational, but the interrupts’ sources are
switched to the lower four bits of the Modem Control. Interrupts continue to be
controlled by the IER register.
OP2. This bit is used for internal Loopback mode only. In Loopback mode, this
bit is used to write the state of the modem CD interface signal.
OP1. This bit is used for internal Loopback mode only. In Loopback mode, this
bit is used to write the state of the modem RI interface signal.
RTS
DTR
logic 0 = divide-by-1 clock input
logic 1 = divide-by-4 clock input
logic 0 = enable the standard modem receive and transmit input/output
interface (normal default condition)
logic 1 = enable infrared IrDA receive and transmit inputs/outputs. While in
this mode, the TX/RX output/inputs are routed to the infrared
encoder/decoder. The data input and output levels will conform to the IrDA
infrared interface requirement. As such, while in this mode, the infrared TX
output will be a logic 0 during idle data conditions.
logic 0 = CMOS output
logic 1 = open-source. A 300 Ω to 500 Ω pull-down resistor is required.
logic 0 = disable Loopback mode (normal default condition)
logic 1 = enable local Loopback mode (diagnostics)
logic 0 = force RTS output to a logic 1 (normal default condition)
logic 1 = force RTS output to a logic 0
logic 0 = force DTR output to a logic 1 (normal default condition)
logic 1 = force DTR output to a logic 0
Rev. 5 — 19 January 2011
Figure
Word length (bits)
5
6
7
8
14).
SC16C850V
© NXP B.V. 2011. All rights reserved.
Figure
25 of 48
6). In