SPRSP14D May 2019 – February 2021 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S
The C28x plus floating-point (C28x+FPU64) processor extends the capabilities of the C28x fixed-point CPU by adding registers and instructions to support both IEEE single-precision and double-percision floating-point operations.
Devices with the C28x+FPU64 include the standard C28x register set plus an additional set of floating-point unit registers. The additional floating-point unit registers are the following:
All of the floating-point registers, except the repeat block register, are shadowed. This shadowing can be used in high-priority interrupts for fast context save and restore of the floating-point registers.