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Ultracompact TCP/IP protocol stack (high-speed version) [M3S-T4-Tiny]


Network software library - Ultracompact TCP/IP protocol stack [high-speed version]


M3S-T4-Tiny (hereafter abbreviated "T4") is the communication protocol software library for Renesas microcntrollers. It makes TCP/IP communication possible in an Ethernet-connected network for all types of equipment that incorporates Renesas microcntrollers. It has been developed based on the advanced version of TCP/IP protocol stack, or M3S-T3-Tiny (hereafter abbreviated "T3"), by altering its specifications to enable the Ethernet interrupt. Furthermore, since T4 can process TCP/IP at high speed, it helps to reduce functional implementations to a possible minimum, thereby enabling the user to realize a compact program size.

This product supplies the basic TCP/IP functions that are needed when building network environments. (See the conceptual image shown below.)

Use of T4 enables network functions to be embodied in every system that incorporates the Renesas microcontroller easily with low cost.

High-quality, network-support embedded equipment such as Internet cameras, remote supervise/control systems and networking consumer electronics now find ever growing demands. Renesas microcontrollers, Renesas middleware and Renesas development tools (e.g., compilers, realtime OS and debuggers) used in combination help to realize prompt development and cost reduction for these pieces of equipment.

Furthermore, evaluation boards also are available that will help you start using T4 immediately. For details, please refer to Condtions of Use.

Product Lineup

Target Device Product Name Part Number
(Ordering Number)
Status Ether/PPP
support status
RX6001, RX200 Series M3S-T4-Tiny for the RX Family R0MRX60PT0020RRC Available Ether/PPP
SH-42 M3S-T4-Tiny for the SH-4 R0M0400PT0020RRC Available Ether
SH-2A M3S-T4-Tiny for the SH-2A R0M02A0PT0020RRC Available Ether
V850 M3S-T4-Tiny for the V850 Family - Under Development3 Ether
M16C Family M3S-T4-Tiny for the M16C Family R0M3060PT0020RRC Available Ether
H8S/2600 Series M3S-T4-Tiny for the H8S Family R0M8200PT0020RRC Available Ether

1. Applies only RXv1 core.
2. Applies only little-endian.
3. The evaluation versions available.

For how to apply the product, please refer to "How to Apply".


  • The evaluation version of T4 for the MCUs are available. Please download from here.
  • Embedding Application Support Software Library sample codes in product designs for mass production allows the customer.

Version Information

RX600,RX200 Series
Latest Ver.: V.1.06 Release 00
Released: Sep 5, 2013

Latest Ver.: V.1.04 Release 00
Released: Oct 16, 2011

SH-2A New
Latest Ver.: V.1.06 Release 00
Released: Apr 1, 2014

Latest Ver.: V.1.05 Release 00
Released: Jun 1, 2012

M16C Family
Latest Ver.: V.1.04 Release 00
Released: Oct 16, 2011

H8S/2600 Series
Latest Ver.: V.1.04 Release 00
Released: Oct 16, 2011
Details of upgrade (Tool News)

Related Resources

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