37 Bit Format w/o Facility Code
The HID 37 bit Wiegand format is H10302. The format consists of 2 parity bits and 35 bit Cardholder ID fields.
PCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP
EXXXXXXXXXXXXXXXXXX..................
..................XXXXXXXXXXXXXXXXXXO
P = Parity
O = Odd Parity
E = Even Parity
X = Parity mask
C = Cardholder ID, range = 0 to 34,359,738,367
| Card Type | Wiegand |
| Number of Bits | 37 |
| Number of bits to sum for even parity | 19 |
| Address to start from | 0 |
| Number of bits to sum for odd parity | 19 |
| Address to start from | 18 |
| Number of Facility Code bits | 0 |
| Address to start from | 0 |
| Number of Cardholder ID bits | 35 |
| Address to start from | 1 |
| Number of Issue Level bits | 0 |
| Address to start from | 0 |