Simple network connection

The keyword for Epson network controllers is "simple connection." With the built-in ability to process complicated TCP/IP protocols, the Epson network controllers make network connection possible for previously unconnectable devices, such as those having only serial ports.

For more information on networkcontroller such as information on documents and application notes, visit the networkcontroller Users' Site.


Epson network controllers with on-chip network protocol processing, designed for embedded systems. With the built-in TCP/IP protocol processing function, the controllers easily turn embedded systems not supporting network connection into network-connectable systems.

Status Download Model name Outline
MP Document download S1S60000 It is a suitable IC in easiness and cheapness for the network for doing the host interface is used as for CPU machine used of 8/16 bit class.


S1S60000 is an intelligent network controller for the built-in equipment with built-in protocol processing function.

The TCP/IP communication can be done only by passing an easy command and data from host CPU to process necessary protocol processing for TCP/IP connection internally.

The equipment for the network such as 10Base-T can be easily achieved by combining the interface with a physical layer with the PHY chip for MII.

CPU machine used of 8/16 bit class is the best for doing the network connection correspondence without the necessity of the protocol stack that high performance OS and the software vender offer.

Moreover, various hosts CPU can connect it directly without additional logic. It is possible to use it easily even with the equipment without, a general-purpose bus such as PCI and ISA, and an external bus.

S1S60000 Block diagram

S1S60000 Main specifications

  • The protocol processing to OSI model L4 layer internal is processed, and the network connection is achieved by an easy command operation.
  • Because the protocol stack of original development is used, the license cost is unnecessary.
  • General purpose I/O pin and the I2C bus can control easy hardware without host CPU from the network.
  • The RS232 ⇔ Ethernet conversion function is achieved alone.
  • The correspondence protocol can be added, and be changed by rewriting the Flash memory.
CPU S1C33240 (SEIKOEPSON original 32-bit RISC CPU)
Built-in Flash memory 128KB(1KB × 128Blocks)
  • MII(Media Independent Interface, IEEE 802.3 Clause 22 comforming)
  • 10 Base-T full/half duplex, 100 Base-TX half duplex transmission are possible.
  • * 100 Base-TX full duplex is unpossible.
  • Built-in enhanced DMA
Host CPU interface 8/16-bit parallel
Host command system EPSON Stadard Code for Network
Serial interface
  • UART: 1ch (GPIO and sharing)
  • I2C master: multi-master
  • Slave function: 10-bit slave
  • (Fast/Normal mode)
  • EEPROM: 93C46 compatible, 3-wire interface 16-bit bus)
GPIO General I/O ports max.16-ports (8-ports are shared with serial interface)
Power supply 3.3V
Pakage QFP 100pin (PQFP 15) 16 × 16 × 1.7mm / 0.5mm Pin pitch
Correspondence protocol


*1: It is possible to use it only for the hardware control mode.