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sle44xx: extend the README for the SLE4442 captures
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2Siemens SLE4442 Chip Card protocol capture
3-------------------------------------------------------------------------------
4
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5See the parent directory for more general information. These captures
6correspond to the SLE4442 chip. Each file demonstrates an individual
7operation.
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8
9
10Logic analyzer setup
11--------------------
12
13The logic analyzer used was a Cypress FX2 no-brand device (at 500kHz):
14
15 Probe SLE4442 pin
16 -----------------------
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17 0 I/O
18 1 CLK
19 2 RST
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20
21
22sle4442_atr.sr
23--------------
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24
25Reset issued by the reader, ATR (Answer to Reset) response sent by the card.
26
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27
28sle4442_psc_correct.sr
29----------------------
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30
31Reader reset, correct PSC (Programmable Security Code) sent by the reader to
32the card, and gets accepted.
33
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34
35sle4442_psc_wrong.sr
36--------------------
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37
38Reader reset, incorrect PSC sent by the reader to the card, and gets refused.
39
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40
41sle4442_read_main_memory.sr
42---------------------------
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43
44Full read of the card's main memory (complete address range). Includes the
45ATR content at offset 0.
46
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47
48sle4442_write_cafe1337_offset_30.sr
49-----------------------------------
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50
51Write 0xCA 0xFE 0x13 0x37 to main memory at offset 0x30, then read back
52several main memory regions (starting slightly before the recently written
53address range, and starting from the beginning of the card's memory). Each
54read continues to the end of the card's capacity.