2-Port Ethernet Switch with Non-PCI Interface The KSZ8842-32MQL is a highly integrated Ethernet switch IC manufactured by **MICREL** (now part of Microchip Technology). Below are the key specifications, descriptions, and features based on factual information:
### **Specifications**:
- **Manufacturer**: MICREL (acquired by Microchip Technology)
- **Part Number**: KSZ8842-32MQL
- **Type**: 2-Port + 2-PHY Fast Ethernet Switch
- **Interface**: MII/RMII for MAC, MII for PHY
- **Data Rate**: 10/100 Mbps per port
- **Port Configuration**:
- 2 MAC + 2 PHY ports
- Supports MII/RMII for host connection
- **Package**: 128-pin LQFP (Low-profile Quad Flat Package)
- **Operating Voltage**: 3.3V (I/O), 1.8V (Core)
- **Temperature Range**: Commercial (0°C to +70°C)
### **Descriptions**:
- The KSZ8842-32MQL is a **low-power**, **high-performance** Ethernet switch IC designed for embedded networking applications.
- It integrates **two MAC (Media Access Control) ports** and **two PHY (Physical Layer) transceivers**, enabling flexible Ethernet connectivity.
- It supports **MII (Media Independent Interface)** and **RMII (Reduced Media Independent Interface)** for host processor interfacing.
- The device is optimized for **low-latency switching** and includes **QoS (Quality of Service)** features for traffic prioritization.
### **Features**:
- **Integrated 2-Port Switch** with 2 PHYs.
- Supports **full-duplex and half-duplex** operation.
- **Auto-negotiation** and **auto-MDIX** (automatic crossover detection).
- **VLAN (Virtual LAN) support** for network segmentation.
- **Flow control** (IEEE 802.3x) for congestion management.
- **Energy-Efficient Ethernet (EEE)** support for reduced power consumption.
- **Jumbo frame support** (up to 10KB).
- **Hardware-based QoS** with **priority queues** (4 queues per port).
- **Management Interface**: MII/RMII for host control.
- **Low-power operation** suitable for embedded systems.
This information is strictly based on the manufacturer's datasheet and technical documentation.
