Datasheet

SPI/I
2
C UART with 128-Word FIFOs
MAX3107
2 Maxim Integrated
TABLE OF CONTENTS
Absolute Maximum Ratings ...................................................................... 6
Package Thermal Characteristics.................................................................. 6
DC Electrical Characteristics ..................................................................... 6
AC Electrical Characteristics ..................................................................... 8
Test Circuits/Timing Diagrams ................................................................... 10
Typical Operating Characteristics ................................................................ 11
Pin Configurations ............................................................................ 12
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Register Map ................................................................................ 14
Detailed Description........................................................................... 15
Register Set................................................................................15
Receive and Transmit FIFOs ...................................................................15
Transmitter Operation ........................................................................15
Receiver Operation ..........................................................................16
Line Noise Indication.........................................................................16
Clocking and Baud-Rate Generation ............................................................16
Crystal Oscillator .........................................................................17
External Clock Source .....................................................................17
PLL and Predivider ..........................................................................17
Fractional Baud-Rate Generator ................................................................17
2x and 4x Rate Modes .......................................................................18
Multidrop Mode ..........................................................................19
Auto Data Filtering in Multidrop Mode .........................................................19
Auto Transceiver Direction Control ..............................................................19
Echo Suppression ...........................................................................20
Auto Hardware Flow Control ...................................................................20
AutoRTS Control..........................................................................20
AutoCTS Control..........................................................................21
Auto Software (XON/XOFF) Flow Control .........................................................21
Transmitter Flow Control....................................................................22
Receiver Flow Control .....................................................................22
FIFO Interrupt Triggering......................................................................22
Low-Power Standby Modes ...................................................................22
Forced Sleep Mode .......................................................................22
Autosleep Mode..........................................................................22
Shutdown Mode ..........................................................................22