Reference Manual Preliminary
Prox–DU & Prox–SU
www.gemalto.com Release for first samples Do not use for final design
DOC118569A Public Use Page 33/134
Communication time out with GemCore POS Pro
This byte defines the internal communication time-out with the GemCore POS Pro chip
controlling the contact interface:
Time unit = 10 seconds
Contactless automaton parameters
Automaton timing
This byte defines the timing of the contactless automaton:
b0-b3: periodic time to search or check for a card presence (unit = 100 ms)
0.1 sec to 1.6 sec (0 is not allowed)
b7-b4: release time after the last host command (unit = 1 second)
1 to 16 sec (0 is not allowed)
Extended ATQB support
This byte defines the Extended ATQB support option as defined in the ISO14443 standard:
00h: Extended ATQB is not supported
01h: Extended ATQB is supported
When this byte = 01h, the information “Extended ATQB supported” is transmitted to the
ISO14443-B contactless card.
ISO level Preference
This byte defines the preferred level of activation for the ISO14443-A cards that are
compliant to the ISO14443-4:
04h: ISO level 4 preference
03h: ISO level 3 preference
When this byte is set to 03h, The ISO144443-4 compliant cards will be activated up to the
SELECT command (the RATS will not be executed). This setting is useful to use MIFARE
®
commands with the cards supporting both T=CL protocol and MIFARE
®
emulation.
Allowed bit rates
This byte defines the list of bit rates allowed for the contactless interface to perform a PPS
(ISO14443-A card) or an ATTRIB command (ISO14443-B card).
The reader will select the highest allowed bit rate that is also supported by the card.
A PPS will be executed only if the ISO14443-A card is compliant to ISO level 4 and if the
selected bit rate is higher than 106 kbps.
b7 b6 b5 b4 b3 b2 b1 b0 Bit rate
x x x x 0 x x 1 212 kbps reader to card allowed
x x x x 0 x 1 x 424 kbps reader to card allowed
x x x x 0 1 x x 848 kbps reader to card allowed
x x x 1 0 x x x 212 kbps card to reader allowed
x x 1 x 0 x x x 424 kbps card to reader allowed
x 1 x x 0 x x x 848 kbps card to reader allowed
1 x x x x x x x
Only the same bit rate for both direction is
allowed
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