Editing Transputer (section)

=== T2: 16-bit ===
[[File:Inmos T225 die.JPG|thumb|150px|Inmos T225 die]]

The prototype 16-bit transputer was the ''S43'', which lacked the scheduler and DMA-controlled block transfer on the links. At launch, the ''T212'' and ''M212'' (the latter with an on-board disk controller) were the 16-bit offerings. The T212 was available in 17.5 and 20&nbsp;MHz processor clock speed ratings. The T212 was superseded by the ''T222'', with on-chip RAM expanded from 2&nbsp;KB to 4&nbsp;KB, and, later, the ''T225''. This added debugging-[[breakpoint]] support (by extending the instruction "<samp>J 0</samp>") plus some extra instructions from the T800 instruction set. Both the T222 and T225 ran at 20&nbsp;MHz.