Reference Manual
Prox–DU & Prox–SU
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DOC118569D Public Use Page 32/145
Configuring the reader/writer
The Prox–DU and Prox–SU device’s configuration is stored into an internal EEPROM
memory specifying various parameters used by the devices for their operation.
For normal use it is not needed to modify the reader/writer configuration.
These parameters can be modified if needed using the “Write EEPROM” and “Read
EEPROM” commands supported by the HID interface. Refer to the “Proprietary commands
on the HID interface” paragraph for more information.
Note: Special care should be considered on the understanding of the parameters. A
modified value may result in an unexpected operation of the Prox–DU and Prox–SU device
if the parameter is not known by the user.
EEPROM parameters contents
The next table shows the EEPROM parameters contents:
Offset Usage Default Value
Control parameters
0 EEPROM structure version 08h
General parameters
1 Dual interface card protection 00h
2 Card notification delay (x 100 ms) 01h
3 Communication time-out with GemCore POS Pro (x10 sec) 11h
4 Load MIFARE
®
keys security option 00h
5 to 8 RFU (4 bytes) 00h
Contactless automaton parameters
9 Automaton timing 11h
10 Extended ATQB support 00h
11 RFU (1 byte) 00h
12 Allowed bit rates list 77h
13 T=CL card presence check behavior 00h
14 Card type polling enable/disable 80h
15 Deactivation / Reactivation behavior 02h
16 RFU (1 byte) 00h
Miscellaneous parameters
17 Overwrite FWI FFh
18 to 24 RFU (7 bytes) 00h
General RF parameters
25 RF reset time 00h
26 RF on delay 00h
27 RF parameters use 00h
28 RF power attenuation 00h
29 to 31 RFU (3 bytes) 00h
32 RF ISO level 2 control for BSI analog tests 00h
RF parameters for ISO14443-A cards
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