SLIMP3 hardware

From the wayback machine, circa 2003, specs for the SLIMP3:

Hardware

• Dimensions: 8.5"W x 2.5"H x 2"D
• Display: Noritake 40x2 VFD
• CPU: Microchip PIC16F877 microcontroller
• Ethernet controller: Crystal CS8900A 10Mbps embedded Ethernet chip
• DMA controller: proprietary logic, Xilinx XC95144XL
• MP3 decoder: Micronas MAS3507D
• DAC: Crystal CS4334, 16-bit 44Khz
• Buffer RAM: 1Mb (8 seconds at 128Kbps)
• ROM: Rewritable flash program memory, EEPROM configuration memory
• IR: Standard 40Khz IR receiver
• Power supply: comes with 5V 1600mA power supply, player uses 700ma (max)

Protocols

• DHCP, ARP, IP, ICMP, UDP
• Support for subnets/gateways (see documentation section on WANs)
• Open UDP-based streaming and control protocols

Firmware

• Open-source, high-speed, embedded IP protocol stack
• Written entirely in assembler, for performance and compactness
• General-purpose architecture offloads most of the application to the server side - new features can be added without making changes to the low-level firmware (protocols, device drivers)
• Integrated boot-loader program includes its own copy of the IP stack and necessary drivers, so that the entire MP3 player application may be reinstalled over the network.