Texas Instruments TMS320C67X/C67X+ DSP Car Speaker User Manual


 
Functional Unit Constraints
4-39PipelineSPRU733
Table 423 shows the instruction constraints for branch instructions executing
on the .S unit.
Table 423. Branch .S-Unit Instruction Constraints
Instruction Execution
Cycle 1 2 3 4 5 6 7 8
Branch
R
Instruction Type
Subsequent Same-Unit Instruction Executable
Single-cycle
DP compare 
2-cycle DP

ADDDP/SUBDP

ADDSP/SUBSP

Branch

Instruction Type
Same Side, Different Unit, Both Using Cross Path Executable
Single-cycle
Load 
Store

INTDP

ADDDP/SUBDP

16 × 16 multiply

4-cycle

MPYI

MPYID

MPYDP
Legend: = E1 phase of the single-cycle instruction; R = Sources read for the instruction; = Next instruction can enter E1
during cycle
The branch on register instruction is the only branch instruction that reads a general-purpose register