SPRSP68B January 2023 – November 2023 TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1
PRODMIX
Refer to the PDF data sheet for device specific package drawings
The trigonometric math unit (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 7-5.
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.
For more information, see the TMS320C28x Extended Instruction Sets Technical Reference Manual.