Overview
The DP83849CVS-EVK is an evaluation kit from Texas Instruments designed to facilitate the development and evaluation of the DP83849C, a dual-port 10/100-Mbps Ethernet PHY transceiver. This kit is intended to help customers quickly design and market systems incorporating the DP83849C. It includes the DP83849 Demo II board, a printed user guide, schematics, and licensing agreements, providing a comprehensive platform for testing and integration.
Key Specifications
| Parameter | Specification |
|---|---|
| Device Type | Dual-port 10/100-Mbps Ethernet PHY transceiver |
| Package Type | 80-pin TQFP |
| Operating Voltage | 3.3V |
| Operating Temperature | Commercial temperature range |
| PHY Addresses | Default: 00h (Port A), 01h (Port B) with incrementing even and odd values up to 30h and 31h respectively |
| Interfaces | MII, RMII, SNI; 2 x RJ-45, 1 x FX (Port B) |
| LED Indicators | 9 LEDs: 1 power, 2 INTERRUPT, 6 others (2 LINK, 2 SPEED, 2 ACT/COL) |
| Strap Options | ED_EN, MDIX_EN, LED_CFG, Auto-Negotiation, EXTENDER_EN, CLK2MAC_DIS, RESET_N, PWR_DWN/INT |
| On-board Clock | Crystal/Oscillator Dual Footprint – 25/50 MHz |
| Power Supply | 5V/3V via MII connector or POE connector |
Key Features
- Support for multiple PHY addresses with default settings and incremental values up to 30h and 31h for Port A and B respectively.
- Nine LEDs for power, interrupt, link, speed, and activity/collision indicators.
- Strap options for various configurations including ED_EN, MDIX_EN, LED_CFG, Auto-Negotiation, EXTENDER_EN, CLK2MAC_DIS, RESET_N, and PWR_DWN/INT.
- Support for MII, RMII, and SNI interfaces with connections for RJ-45 and FX transceivers.
- On-board clock with crystal/oscillator dual footprint for 25/50 MHz operation.
- Dual-sided component placement and low-cost design considerations.
Applications
The DP83849CVS-EVK is suitable for a variety of applications requiring dual-port Ethernet connectivity, including:
- Network devices such as routers, switches, and gateways.
- Industrial control systems and automation equipment.
- Embedded systems and IoT devices.
- Telecommunication equipment and broadband access devices.
Q & A
- What is the primary purpose of the DP83849CVS-EVK?
The primary purpose is to provide a platform for customers to evaluate and design systems using the DP83849C dual-port Ethernet PHY transceiver.
- What are the default PHY addresses for Port A and Port B?
The default PHY addresses are 00h for Port A and 01h for Port B, with incremental even and odd values up to 30h and 31h respectively.
- What interfaces are supported by the DP83849CVS-EVK?
The kit supports MII, RMII, and SNI interfaces.
- How many LEDs are on the DP83849 Demo II board and what do they indicate?
There are 9 LEDs: 1 power, 2 INTERRUPT, and 6 others for link, speed, and activity/collision indicators.
- What are the strap options available on the DP83849CVS-EVK?
The strap options include ED_EN, MDIX_EN, LED_CFG, Auto-Negotiation, EXTENDER_EN, CLK2MAC_DIS, RESET_N, and PWR_DWN/INT.
- What is the operating voltage of the DP83849C?
The operating voltage is 3.3V.
- How is power supplied to the DP83849CVS-EVK?
Power can be supplied through the MII connector or via a POE connector.
- What is the significance of the on-board clock with crystal/oscillator dual footprint?
The on-board clock supports both crystal and oscillator configurations for 25/50 MHz operation.
- What are some common applications for the DP83849CVS-EVK?
Common applications include network devices, industrial control systems, embedded systems, and telecommunication equipment.
- Where can I find detailed specifications and datasheets for the DP83849C?
Detailed specifications and datasheets can be found on the Texas Instruments website and other electronic component databases like Digi-Key and Mouser.
