TagMaster XT-1 - Wiegand Timing

XT-1/XT Mini Manual 13-111 05, 2015-08-14
Page 13 of 32
W37N/H10302
37-bit Wiegand (35-bit data, no site code):
EDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDO
XXXXXXXXXXXXXXXXXXX------------------
------------------XXXXXXXXXXXXXXXXXXX
W37R/H10302
37-bit Wiegand (37-bit data, no site code, no parity):
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
M8N/H10320
8-digit Magstripe:
[25 zeroes]BDDDDDDDDFL[165 zeroes]
Table 5 Wiegand/Magstripe formats
Using DIP switches S301:6-8 it is possible to activate 1 kΩ pull-up resistors on D0/CLK, D1/DATA and
CL/LOAD. Details are shown in Figure 11.
Figure 11 Wiegand/Magstripe DIP switch configuration
3.3.1 Wiegand Timing
The following values apply when all outputs are pulled up to 5 V with 1 kΩ resistors.
Symbol
Parameter
Min
Typ
Max
Unit
t
SU
CL to D# setup time 1520
µs
t
F
Fall time (all signals) 125 ns
t
R
Rise time (all signals) 5
µs
t
PI
Pulse interval 2 ms
t
PW
Pulse width 80
µs
t
H
CL hold time after last D# change 1840
µs
Table 6 Wiegand interface timing
1 8
ON
S101
1 8
ON
S101
1 8
ON
S101
S301:6
1kΩ
D0/CLK
5V
S301:7
1kΩ
D1/DATA
S301:8
1kΩ
CL/LOAD
GND