Please explain in detail the function of the OSSR and OSSI bit of TIM1_BDTR Registerh?

[jpark.7]

MOE: 1

OSSI bit : x

OSSR bit : 1

CCxE bit : 0, CCxNe bit : 1

or ​

CCxE bit : 1, CCxNe bit : 0

Please explain about == Off-State OCx=CCxP, OCx_En=0 === ​