TL28L92 Receiver/Transmitter Datasheet

TL28L92 Datasheet, PDF, Equivalent


Part Number

TL28L92

Description

3.3-V/5-V Dual Universal Asynchronous Receiver/Transmitter

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download TL28L92 Datasheet


TL28L92
TL28L92
3.3-V/5-V Dual Universal Asynchronous
Receiver/Transmitter
Data Manual
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Literature Number: SLLS890B
August 2008 – Revised August 2009

TL28L92
TL28L92
SLLS890B – AUGUST 2008 – REVISED AUGUST 2009
www.ti.com
Contents
1 General Description ............................................................................................................. 7
1.1 Features ...................................................................................................................... 7
1.2 Description ................................................................................................................... 7
1.3 Device Information .......................................................................................................... 9
2 Functional Description ....................................................................................................... 17
2.1 Block Diagram ............................................................................................................. 17
2.1.1 Data Bus Buffer ................................................................................................. 17
2.1.2 Operation Control ............................................................................................... 17
2.1.3 Interrupt Control ................................................................................................. 17
2.1.4 FIFO Configuration ............................................................................................. 17
2.1.5 68xxx Mode ..................................................................................................... 17
2.2 Timing Circuits ............................................................................................................. 18
2.2.1 Crystal Clock .................................................................................................... 18
2.2.2 Baud Rate Generator .......................................................................................... 18
2.2.3 Counter/Timer ................................................................................................... 18
2.2.4 Timer Mode ...................................................................................................... 18
2.2.5 Counter Mode ................................................................................................... 19
2.2.6 Time-Out Mode ................................................................................................. 19
2.2.7 Time-Out Mode Caution ....................................................................................... 20
2.2.8 Communications Channels A and B ......................................................................... 20
2.2.9 Input Port ........................................................................................................ 20
2.2.10 Output Port ...................................................................................................... 20
2.3 Operation ................................................................................................................... 21
2.3.1 Transmitter ...................................................................................................... 21
2.3.2 Receiver ......................................................................................................... 21
2.3.3 Transmitter Reset and Disable ............................................................................... 22
2.3.4 Receiver FIFO .................................................................................................. 22
2.3.5 Receiver Status Bits ............................................................................................ 22
2.3.6 Receiver Reset and Disable .................................................................................. 23
2.3.7 Watchdog ........................................................................................................ 23
2.3.8 Receiver Time-Out Mode ...................................................................................... 23
2.3.9 Time-Out Mode Caution ....................................................................................... 24
2.3.10 Multi-Drop Mode (9-Bit or Wake-Up) ......................................................................... 24
3 Programming .................................................................................................................... 25
3.1 Register Overview ......................................................................................................... 25
3.2 Condensed Register Bit Formats ........................................................................................ 27
3.3 Register Descriptions ..................................................................................................... 29
3.3.1 Mode Registers ................................................................................................. 29
3.3.1.1 Mode Register 0 Channel A (MR0A) ............................................................ 29
3.3.1.2 Mode Register 1 Channel A (MR1A) ............................................................ 31
3.3.1.3 Mode Register 2 Channel A (MR2A) ............................................................ 32
3.3.1.4 Mode Register 0 Channel B (MR0B) ............................................................ 35
3.3.1.5 Mode Register 1 Channel B (MR1B) ............................................................ 35
3.3.1.6 Mode Register 2 Channel B (MR2B) ............................................................ 35
3.3.2 Clock Select Registers ......................................................................................... 35


Features TL28L92 3.3-V/5-V Dual Universal Asynchr onous Receiver/Transmitter Data Manual PRODUCTION DATA information is current as of publication date. Products confor m to specifications per the terms of th e Texas Instruments standard warranty. Production processing does not necessar ily include testing of all parameters. Literature Number: SLLS890B August 2008 – Revised August 2009 TL28L92 SLLS 890B – AUGUST 2008 – REVISED AUGUST 2009 www.ti.com Contents 1 General D escription ............................ ....................................... ....................................... ... 7 1.1 Features .................... ....................................... ....................................... .................... 7 1.2 Description ....................................... ....................................... ..................................... 7 1.3 Device Information ............... ....................................... .................................................... 9 2 Functional D.
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