TMC2072
The TMC2072 network controller is CircLink technology's flagship product. The TMC2072's flexibility and rich feature set enable a high-reliability and high-performance, real-time and control-oriented network without the cumbersome middle layer protocol stacks and complex packet prioritization schemes typically required.
TMC2072 operates at network data transfer rates up to 5 Mbps. Its embedded 1 kByte RAM can be configured into a maximum of 32 pages to implement a 31-node network where each node in the network has the same local memory.
TMC2072 supports "Peripheral Mode" operation, which includes two selectable communication modes:"Free Format Mode" and "Remote Buffer Mode". Free Format mode, retained from ARCNET, is "packet oriented" communication. Remote Buffer mode communication is a CircLink-specific feature, and is a token oriented communication, which includes automatic data transmission when the token arrives.
The TMC2072 has a flexible 8-bit or 16-bit databus to interface various CPU types including X86, 68XX, and SHx with multiplexed or non-multiplexed address/data. When operating in Peripheral mode, the TMC2072 has 8-bit programmable I/O available. When operating in Standalone mode, the TMC2072's I/O configuration is16-bit. The TMC2072 also integrates a 3-port hub (two ports for external connection) to accommodate various network topologies (Bus, Star, etc.) and combinations.
Features- Low Power CMOS, 3.3 Volt Power Supply with 5 Volt Tolerant I/O
- Supports 8/16-Bit Data Bus
Both 86xx and 68hxx Platforms
- Both 86xx and 68hxx Platforms
- 1K On-chip Dual Port Buffer Memory
Sequential I/O Mapped Access
- Sequential I/O Mapped Access
- Enhanced Token Passing Protocol from ARCNET
Maximum 31 Nodes per Network
Token Retry Mechanism
Maximum 256 Bytes per Packet
Consecutive Node ID Assignment
- Maximum 31 Nodes per Network
- Token Retry Mechanism
- Maximum 256 Bytes per Packet
- Consecutive Node ID Assignment
- Memory Mirror
Shared Memory within Network
- Shared Memory within Network
- Network Standard Time
Network Time Synchronization
Automatic Time Stamping
- Network Time Synchronization
- Automatic Time Stamping
- Coded Mark Inversion
Intelligent 1-Bit Error Correction
Magnetic Saturation Prevention
- Intelligent 1-Bit Error Correction
- Magnetic Saturation Prevention
- Single Operation Mode
Supports Only Peripheral (Host) Mode Operates with MCU
- Supports Only Peripheral (Host) Mode Operates with MCU
- Supports 8 Bit Programmable General Purpose I/O
- Dual Communication Modes (with Peripheral Mode)
Free Format Mode
Remote Buffer Mode
- Free Format Mode
- Remote Buffer Mode
- 3 Port Hub Integrated
1 Internal and 2 External
- 1 Internal and 2 External
- Flexible Topologies
Bus, Star, and Tree
- Bus, Star, and Tree
- Low-Cost Media can be Used
RS485 Differential Driver
- RS485 Differential Driver
- Fiber Optics and Twisted Pair Cable Supported
- 100-Pin, TQFP RoHS Compliant Package
- Temperature Range from 0 to 70 Degrees C
| Parameter|
Parameter Name
Value
| Value | |
MAC
Yes
|
Yes
| |
TX/RX RAM Buffer(Bytes)
8K
|
8K
| |
Deterministic Protocola (Token Passing)
Yes
|
Yes
| |
Operating Voltage (V)
3.3V
|
3.3V
| |
Max Speed (MHz)
5 Mbps
|
5 Mbps
| |
Interface
RS485
|
RS485
| |
Temp Range Max (°C)
70
|
70
| |
Comments
Peripheral mode Circlink Controller
|
Peripheral mode Circlink Controller
|
|
Documents
Similar Devices
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| TMC2072-MT | 0.580400 | 6.666667 | 100 | LQFP | 14x14x1.6mm | Matte Tin | e3 |  |  |
