DS80C400
Network Microcontroller
Networked Microcontroller Offers the Integration Available in an 8051 Device
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The DS80C400 network microcontroller offers the highest integration available in an 8051 device. Peripherals include a 10/100 Ethernet MAC, three serial ports, a CAN 2.0B controller, 1-Wire® Master, and 64 I/O pins.To enable access to the network, a full application-accessible TCP IPv4/6 network stack and OS are provided in ROM. The network stack supports up to 32 simultaneous TCP connections and can transfer up to 5Mbps through the Ethernet MAC. Its maximum system-clock frequency of 75MHz results in a minimum instruction cycle time of 54ns. Access to large program or data memory areas is simplified with a 24-bit addressing scheme that supports up to 16MB of contiguous memory.
To accelerate data transfers between the microcontroller and memory, the DS80C400 provides four data pointers, each of which can be configured to automatically increment or decrement upon execution of certain data pointer-related instructions. The DS80C400's hardware math accelerator further increases the speed of 32-bit and 16-bit multiply and divide operations as well as high-speed shift, normalization, and accumulate functions.
The High-Speed Microcontroller User's Guide and the High-Speed Microcontroller User's Guide: Network Microcontroller Supplement should be used in conjunction with this data sheet. Download both at www.maximintegrated.com/microcontrollers.
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Key Features
- High-Performance Architecture
- Single 8051 Instruction Cycle in 54ns
- DC to 75MHz Clock Rate
- Flat 16MB Address Space
- Four Data Pointers with Auto-Increment/Decrement and Select-Accelerate Data Movement
- 16/32-Bit Math Accelerator
- Multitiered Networking and I/O
- 10/100 Ethernet Media Access Controller (MAC)
- CAN 2.0B Controller
- 1-Wire Net Controller
- Three Full-Duplex Hardware Serial Ports
- Up to Eight Bidirectional 8-Bit Ports (64 Digital I/O Pins)
- Robust ROM Firmware
- Supports Network Boot Over Ethernet Using DHCP and TFTP
- Full, Application-Accessible TCP/IP Network Stack
- Supports IPv4 and IPv6
- Implements UDP, TCP, DHCP, ICMP, and IGMP
- Preemptive, Priority-Based Task Scheduler
- MAC Address Can Optionally Be Acquired from IEEE-Registered DS2502-E48
- 10/100 Ethernet Mac
- Flexible IEEE 802.3 MII (10/100Mbps) and ENDEC (10Mbps) Interfaces Allow Selection of PHY
- Low-Power Operation: Ultra-Low-Power Sleep Mode with Magic Packet® and Wake-Up Frame Detection
- 8kB On-Chip Tx/Rx Packet Data Memory with Buffer Control Unit Reduces Load on CPU
- Half- or Full-Duplex Operation with Flow Control
- Multicast/Broadcast Address Filtering with VLAN Support
- Full-Function CAN 2.0B Controller
- 15 Message Centers
- Supports Standard (11-Bit) and Extended (29-Bit) Identifiers and Global Masks
- Media Byte Filtering to Support DeviceNet™, SDS, and Higher Layer CAN Protocols
- Auto-Baud Mode and SIESTA Low-Power Mode
- Integrated Primary System Logic
- 16 Total Interrupt Sources with Six External
- Four 16-Bit Timer/Counters
- 2x/4x Clock Multiplier Reduces Electromagnetic Interference (EMI)
- Programmable Watchdog Timer
- Oscillator-Fail Detection
- Programmable IrDA Clock
Features continued on page 32 of the full data sheet.
Applications/Uses
- Analog Modems
- Automatic Meter Reading/900MHz-ISM
- Automatic Teller Machine Systems
- Data Converters (Serial-to-Ethernet, CAN-to-Ethernet)
- Environmental Monitoring
- Home/Office Automation
- Industrial Control and Automation
- Network Sensors
- Portable Point-of-Sales Equipment
- Remote Data-Collection Equipment
- Security Systems
- Transaction/Payment Terminals
- Vending
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