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- Processor Identification: 00019740 (Processor ID: 0x97; Rev: 2.0.0)


The 74K family has two members: the MIPS32® 74KcTM core and the MIPS32® 74KfTMcore:

  • The 74Kc 32-bit RISC core is optimized for high-performance applications.
  • The 74Kf core adds an IEEE-754 compliant floating point unit.

The core implements the MIPS32 Release 2 Instruction Set Architecture (ISA). It also implements the following Application-Specific Extensions (ASEs):

  • The MIPS® DSP Application-Specific Extension (ASE) is optimized for signal-processing applications.
  • The MIPS16eTM Application-Specific Extension (ASE) is optimized for code compression.


Release Identifier PRId[Revision] Maj.min.patch/hex Description Date
1_0_* 1.0.0 / 0x20 Early-access release of 74K family RTL. January 31, 2007
2_0_0* 2.0.0 / 0x40 First generally-available release of 74K family core. May 11, 2007
2_1_0* 2.1.0 / 0x44 Can wait with interrupts disabled. October 31, 2007