Why 1D00FFFF and not 1CFFFFFF as target in genesis block

[Bitcoin]

Why 1D00FFFF and not 1CFFFFFF as target in genesis block

Is there a specific reason why 1D00FFFF is the target bit for the genesis block and not 1CFFFFFF? Both bits are forcing 8 zeros in the front of the hash (hexadecimal).

Regards steff

Source: Why 1D00FFFF and not 1CFFFFFF as target in genesis block