SLLS890C
August 2008 – April 2024
TL28L92
PRODUCTION DATA
1
1
Features
2
Description
3
Pin Configurations and Functions
4
Electrical Specifications
4.1
Absolute Maximum Ratings
4.2
Static Characteristics for 5V Operation
4.3
Static Characteristics for 3.3V Operation
4.4
Dynamic Characteristics for 5V Operation
4.5
Dynamic Characteristics for 3.3V Operation
4.6
Typical Performance
4.7
Timing Diagrams
4.8
Test Information
5
Detailed Description
5.1
Overview
5.2
Functional Block Diagram
5.3
Feature Description
5.3.1
Data Bus Buffer
5.3.2
Operation Control
5.3.3
Interrupt Control
5.3.4
FIFO Configuration
5.3.5
68xxx Mode
5.3.6
Timing Circuits
5.3.6.1
Crystal Clock
5.3.6.2
Baud Rate Generator
5.3.6.3
Counter/Timer
5.3.6.4
Timer Mode
5.3.6.5
Counter Mode
5.3.6.6
Time-Out Mode
5.3.6.7
Time-Out Mode Caution
5.3.6.8
Communications Channels A and B
5.3.6.9
Input Port
5.3.6.10
Output Port
5.3.7
Operation
5.3.7.1
Transmitter
5.3.7.2
Receiver
5.3.7.3
Transmitter Reset and Disable
5.3.7.4
Receiver FIFO
5.3.7.5
Receiver Status Bits
5.3.7.6
Receiver Reset and Disable
5.3.7.7
Watchdog
5.3.7.8
Receiver Time-Out Mode
5.3.7.9
Time-Out Mode Caution
6
Programming
6.1
Register Overview
6.2
Condensed Register Bit Formats
6.3
Register Descriptions
6.3.1
Mode Registers
6.3.1.1
Mode Register 0 Channel A (MR0A)
6.3.1.2
Mode Register 1 Channel A (MR1A)
6.3.1.3
Mode Register 2 Channel A (MR2A)
6.3.1.4
Mode Register 0 Channel B (MR0B)
6.3.1.5
Mode Register 1 Channel B (MR1B)
6.3.1.6
Mode Register 2 Channel B (MR2B)
6.3.2
Clock Select Registers
6.3.2.1
Clock Select Register Channel A (CSRA)
6.3.2.2
Clock Select Register Channel B (CSRB)
6.3.3
Command Registers
6.3.3.1
Command Register Channel A (CRA)
6.3.3.2
Command Register Channel B (CRB)
6.3.4
Status Registers
6.3.4.1
Status Register Channel A (SRA)
6.3.4.2
Status Register Channel B (SRB)
6.3.5
Output Configuration Control Register (OPCR)
6.3.6
Set Output Port Bits Register (SOPR)
6.3.7
Reset Output Port Bits Register (ROPR)
6.3.8
Output Port Register (OPR)
6.3.9
Auxiliary Control Register (ACR)
6.3.10
Input Port Change Register (IPCR)
6.3.11
Interrupt Status Register (ISR)
6.3.12
Interrupt Mask Register (IMR)
6.3.13
Interrupt Vector Register (IVR; 68xxx Mode) or General Purpose Register (GP; 80xxx Mode)
6.3.14
Counter and Timer Registers
6.4
Output Port Notes
6.5
CTS, RTS, CTS Enable Tx Signals
7
Device and Documentation Support
7.1
Receiving Notification of Documentation Updates
7.2
Support Resources
7.3
Trademarks
7.4
Electrostatic Discharge Caution
7.5
Glossary
8
Revision History
9
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
FR|44
MQFP002A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slls890c_oa
slls890c_pm
4
Electrical Specifications