SC16C850IBS,157 NXP Semiconductors, SC16C850IBS,157 Datasheet - Page 33

• Manufacturer Part Number: SC16C850IBS,157
• Description: IC UART SGL W/FIFO 32HVQFN
• Manufacturer: NXP Semiconductors

Specifications of SC16C850IBS,157

• Features: Programmable
• Number Of Channels: 1, UART
• Fifo's: 128 Byte
• Protocol: RS485
• Voltage - Supply: 2.5 V ~ 3.3 V
• 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

NXP Semiconductors
SC16C850
Product data sheet
7.15 Transmit Interrupt Level Register (TXINTLVL)
7.16 Receive Interrupt Level Register (RXINTLVL)
Table 24.
[1]
This 8-bit register is used to store the transmit FIFO trigger levels used for interrupt
generation. Trigger levels from 1 to 128 can be programmed with a granularity of 1.
Table 25
Table 25.
[1]
This 8-bit register is used store the receive FIFO trigger levels used for interrupt
generation. Trigger levels from 1 to 128 can be programmed with a granularity of 1.
Table 26
Table 26.
Cont-3
0
1
0
1
X
X
X
1
0
1
Bit
7:0
Bit
7:0
When using a software flow control the Xon/Xoff characters cannot be used for data transfer.
For 32-byte FIFO mode, refer to
Symbol
TXINTLVL[7:0]
shows the TXINTLVL register bit settings.
shows the RXINTLVL register bit settings.
Symbol
RXINTLVL[7:0]
Cont-2
0
0
1
1
X
X
X
0
1
1
Software flow control functions
TXINTLVL register bits description
RXINTLVL register bits description
All information provided in this document is subject to legal disclaimers.
Cont-1
X
X
X
X
0
1
0
1
1
1
2.5 to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
Rev. 2 — 11 November 2010
Description
This register stores the programmable transmit interrupt trigger levels
for 128-byte FIFO mode
Description
This register stores the programmable receive interrupt trigger levels
for 128-byte FIFO mode
0x00 = trigger level is set to 1
0x01 = trigger level is set to 1
...
0x80 = trigger level is set to 128
0x00 = trigger level is set to 1
0x01 = trigger level is set to 1
...
0x80 = trigger level is set to 128
Cont-0
X
X
X
X
0
0
1
1
1
1
Section
7.3.
TX, RX software flow controls
No transmit flow control
Transmit Xon1/Xoff1
Transmit Xon2/Xoff2
Transmit Xon1 and Xon2/Xoff1 and Xoff2
No receive flow control
Receiver compares Xon1/Xoff1
Receiver compares Xon2/Xoff2
Transmit Xon1/Xoff1
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
Transmit Xon2/Xoff2
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
Transmit Xon1 and Xon2, Xoff1 and Xoff2
Receiver compares Xon1 and Xon2, Xoff1 and Xoff2
[1]
[1]
[1]
.
.
SC16C850
© NXP B.V. 2010. All rights reserved.
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