Datasheet

SPI/I
2
C UART with 128-Word FIFOs
MAX3107
3Maxim Integrated
Power-Up and IRQ ..........................................................................22
Interrupt Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Interrupt Enabling.........................................................................23
Interrupt Clearing .........................................................................23
Detailed Register Descriptions .................................................................23
Serial Controller Interface....................................................................... 44
SPI Interface ...............................................................................44
SPI Single-Cycle Access ...................................................................44
SPI Burst Access .........................................................................44
I
2
C Interface ...............................................................................44
START, STOP, and Repeated START Conditions.................................................45
Slave Address ...........................................................................45
Bit Transfer ..............................................................................45
Single-Byte Write .........................................................................45
Burst Write ..............................................................................45
Single-Byte Read .........................................................................46
Burst Read ..............................................................................47
Acknowledge ............................................................................47
Applications Information........................................................................ 47
Startup and Initialization ......................................................................47
Low-Power Operation ........................................................................48
Interrupts and Polling ........................................................................48
Logic-Level Translation .......................................................................48
Connector Pin Sharing .......................................................................49
RS-232 5x3 Application ......................................................................49
Typical Application Circuit ...................................................................... 49
Chip Information .............................................................................. 49
Functional Diagram ........................................................................... 51
Package Information........................................................................... 51
Revision History .............................................................................. 52
TABLE OF CONTENTS (continued)