SPRS881K August 2014 – February 2024 TMS320F28374S , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376S , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28378S , TMS320F28379S
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The TMU extends the capabilities of a C28x+FPU by adding instructions and leveraging existing FPU instructions to speed up the execution of common trigonometric and arithmetic operations listed in Table 7-10.
INSTRUCTIONS | C EQUIVALENT OPERATION | PIPELINE CYCLES |
---|---|---|
MPY2PIF32 RaH,RbH | a = b * 2pi | 2/3 |
DIV2PIF32 RaH,RbH | a = b / 2pi | 2/3 |
DIVF32 RaH,RbH,RcH | a = b/c | 5 |
SQRTF32 RaH,RbH | a = sqrt(b) | 5 |
SINPUF32 RaH,RbH | a = sin(b*2pi) | 4 |
COSPUF32 RaH,RbH | a = cos(b*2pi) | 4 |
ATANPUF32 RaH,RbH | a = atan(b)/2pi | 4 |
QUADF32 RaH,RbH,RcH,RdH | Operation to assist in calculating ATANPU2 | 5 |
No changes have been made to existing instructions, pipeline or memory bus architecture. All TMU instructions use the existing FPU register set (R0H to R7H) to carry out their operations. A detailed explanation of the workings of the FPU can be found in the TMS320C28x Extended Instruction Sets Technical Reference Manual.