SC16C850VIBS-S NXP Semiconductors, SC16C850VIBS-S Datasheet - Page 13

• Manufacturer Part Number: SC16C850VIBS-S
• Manufacturer: NXP Semiconductors

Specifications of SC16C850VIBS-S

• 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
• Number Of Channels: 1
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
SC16C850V
Product data sheet
6.10 Loopback mode
The internal loopback capability allows on-board diagnostics. In the Loopback mode, the
normal modem interface pins are disconnected and reconfigured for loopback internally
(see
In the Loopback mode, the transmitter output (TX) and the receiver input (RX) are
disconnected from their associated interface pins, and instead are connected together
internally. The CTS, DSR, CD, and RI are disconnected from their normal modem control
inputs pins, and instead are connected internally to RTS, DTR, MCR[3] (OP2) and MCR[2]
(OP1). Loopback test data is entered into the transmit holding register via the user data
bus interface, AD[7:0]. The transmit UART serializes the data and passes the serial data
to the receive UART via the internal loopback connection. The receive UART converts the
serial data back into parallel data that is then made available at the user data interface
AD[7:0]. The user optionally compares the received data to the initial transmitted data for
verifying error-free operation of the UART TX/RX circuits.
In this mode, the receiver and transmitter interrupts are fully operational. The modem
control interrupts are also operational.
Figure
6). MCR[3:0] register bits are used for controlling loopback diagnostic testing.
Single UART with 128-byte FIFOs, IrDA, and XScale VLIO bus interface
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 19 January 2011
SC16C850V
© NXP B.V. 2011. All rights reserved.
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