TMC2074 Datasheet, PDF (1/116 Pages) SMSC Corporation – Dual Mode CircLink™ Controller

TMC2074
Dual Mode CircLink^™
Controller
PRODUCT FEATURES
ƒ Low Power CMOS, 3.3 Volt Power Supply with 5
Volt Tolerant I/O
ƒ Supports 8/16-Bit Data Bus
− Both 86xx and 68hxx Platforms
ƒ 1K On-chip Dual Port Buffer Memory
− Sequential I/O Mapped Access
ƒ Enhanced Token Passing Protocol from ARCNET
− Maximum 31 Nodes per Network
− Token Retry Mechanism
− Maximum 256 Bytes per Packet
− Consecutive Node ID Assignment
ƒ Memory Mirror
− Shared Memory within Network
ƒ Network Standard Time
− Network Time Synchronization
− Automatic Time Stamping
ƒ Coded Mark Inversion
− Intelligent 1-Bit Error Correction
− Magnetic Saturation Prevention
ƒ Dual Operation Modes
− Peripheral (Host) Mode Operates with MCU
− Standalone (I/O) Mode Operates without MCU
Datasheet
ƒ Supports 8 Bit Programmable General Purpose
I/O at peripheral Mode
ƒ Supports 16 Bit Input and 16 Bit Output at
Standalone Mode
ƒ Dual Communication Modes (with Peripheral
Mode)
− Free Format Mode
− Remote Buffer Mode
ƒ 3 Port Hub Integrated
− 1 Internal and 2 External
ƒ Flexible Topologies
− Bus, Star and Tree
ƒ Low Cost Media can be Used
− RS485 Differential Driver
ƒ Fiber Optics and Twisted Pair Cable Supported
ƒ 128-Pin VTQFP Package; Green, Lead-free
Package also Available
ƒ Temperature Range from 0 to 70 Degrees C
SMSC TMC2074
Page 1
DATASHEET
Revision 0.1 (03-29-06)