PIN notation
The content of PIN blocks are assigned a letter that represents the content.
The following notations describe the contents of PIN blocks:
- P =
- A 4-bit decimal digit that is one digit of the PIN value.
- C =
- A 4-bit hexadecimal control value. The valid values are X'0', X'1', and X'2'.
- L =
- A 4-bit hexadecimal value that specifies the number of PIN digits. This value is in the range 4 - 12.
- F =
- A 4-bit field delimiter of value X'F'.
- f =
- A 4-bit delimiter filler that is either P or F, depending on the length of the PIN.
- D =
- A 4-bit decimal padding value. All pad digits in the PIN block have the same value.
- X =
- A 4-bit hexadecimal padding value. All pad digits in the PIN block have the same value.
- x =
- A 4-bit hexadecimal filler that is either P or X, depending on the length of the PIN.
- R =
- A 4-bit hexadecimal random digit. The sequence of R digits can each take a different value.
- r =
- A 4-bit random filler that is either P or R, depending on the length of the PIN.
- Z =
- A 4-bit hexadecimal zero (X'0').
- z =
- A 4-bit zero filler that is either P or Z, depending on the length of the PIN.
- S =
- A 4-bit hexadecimal digit that constitutes one digit of a sequence number.
- U =
- A 4-bit decimal digit that constitutes one digit of a user-specified constant.
- A =
- A 4-bit decimal digit that constitutes one digit of a user-specified constant.
- a =
- A 4-bit value that is either P or A, depending on the length of the PIN.