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NYX512 ASIC — Pinout Quick Reference
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1. PACKAGE OVERVIEW
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  Package type:    BGA (Ball Grid Array)
  Total pads:      728
  Grid:            28 rows x 26 columns
  Pitch:           0.14 mm
  Pad diameter:    0.08 mm
  Pad shape:       Circle

2. PIN 1 LOCATION AND ORIENTATION
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  Pin A1 is located at the bottom-left corner of the BGA
  (most negative X, most negative Y coordinate).
  Column numbering: 1 (left) to 26 (right).
  Row lettering:    A, B, C, D-N, P-Y, AA-AH (bottom to top).
  Note: rows I and O are omitted per BGA convention.

3. POWER PIN SUMMARY
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  Net Name         Description                  Count   Example Pads
  --------         -----------                  -----   ------------
  VSSA             Analog supply ground            46   A1, A2, A5, A6, ...
  VCC_2V5          2.5V analog supply              18   A3, A4, A7, A8, ...
  DVDD_1V2         1.2V digital supply              6   AG3, AG12, AG23, AH3, ...
  DVDD_1V2_BOT     1.2V digital supply (bottom)     4   A9, A17, B9, B17
  DVSS             Digital ground                  38   AF1, AF2, AF3, AF4, ...
  DVSS_BOT         Digital ground (bottom)          4   A10, A18, B10, B18
  ................ TOTAL                          116

4. DIGITAL INTERFACE SUMMARY
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  SPI Bus:
    ASIC1_CS         SPI chip select          Pads: AG4, AH4
    ASIC1_SCLK       SPI clock                Pads: AG6, AH6
    ASIC1_SDIN       SPI data in              Pads: AG5, AH5
    ASIC1_SDOUT      SPI data out             Pads: AG7, AH7

  Data Output (4 lanes with word clocks):
    Lane 0:  ASIC1_DATA0      Pads: AG13, AH13
            ASIC1_WCLK0      Pads: AG14, AH14
    Lane 1:  ASIC1_DATA1      Pads: AG15, AH15
            ASIC1_WCLK1      Pads: AG16, AH16
    Lane 2:  ASIC1_DATA2      Pads: AG17, AH17
            ASIC1_WCLK2      Pads: AG18, AH18
    Lane 3:  ASIC1_DATA3      Pads: AG19, AH19
            ASIC1_WCLK3      Pads: AG20, AH20

  Control:
    ASIC1_RSTB       Active-low reset         Pads: AG8, AH8
    ASIC1_CLK        Master clock input       Pads: AG9, AH9

  Total digital pads: 28

5. ELECTRODE MAPPING SUMMARY
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  Total electrode pads: 512 (el0 through el511)

  Row    Electrode Range                Count
  ---    ---------------                -----
  D      el[0-3, 128-131, 256-259, 384-387]    16
  E      el[4-7, 132-135, 260-263, 388-391]    16
  F      el[8-13, 136-141, 264-269, 392-397]    24
  G      el[14-19, 142-147, 270-275, 398-403]    24
  H      el[20-25, 148-153, 276-281, 404-409]    24
  J      el[26-31, 154-159, 282-287, 410-415]    24
  K      el[32-37, 160-165, 288-293, 416-421]    24
  L      el[38-43, 166-171, 294-299, 422-427]    24
  M      el[44-49, 172-177, 300-305, 428-433]    24
  N      el[50-55, 178-183, 306-311, 434-439]    24
  P      el[56-61, 184-189, 312-317, 440-445]    24
  R      el[62-67, 190-195, 318-323, 446-451]    24
  T      el[68-73, 196-201, 324-329, 452-457]    24
  U      el[74-79, 202-207, 330-335, 458-463]    24
  V      el[80-85, 208-213, 336-341, 464-469]    24
  W      el[86-91, 214-219, 342-347, 470-475]    24
  Y      el[92-97, 220-225, 348-353, 476-481]    24
  AA     el[98-103, 226-231, 354-359, 482-487]    24
  AB     el[104-109, 232-237, 360-365, 488-493]    24
  AC     el[110-115, 238-243, 366-371, 494-499]    24
  AD     el[116-121, 244-249, 372-377, 500-505]    24
  AE     el[122-127, 250-255, 378-383, 506-511]    24

6. NO-CONNECT (NC) PAD LOCATIONS
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  Total NC pads: 52

  D1, D26, E1, E4, E5, E10, E11, E16, E17, E22
  E23, E26, F1, F26, G1, G26, H1, H26, J1, J26
  K1, K26, L1, L26, M1, M26, N1, N26, P1, P26
  R1, R26, T1, T26, U1, U26, V1, V26, W1, W26
  Y1, Y26, AA1, AA26, AB1, AB26, AC1, AC26, AD1, AD26
  AE1, AE26

7. NOTES
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  a) 52 unconnected pads total. The 44 perimeter
     NC pads are located in column 1 and column 26 of electrode
     rows (D-Y, AA-AE), forming the left and right edges of the
     electrode array.
     8 interior NC pads: E4, E5, E10, E11, E16, E17, E22, E23

  b) 12 auto-named pads with NetU1_* designators are located in
     the bottom-right (A24-A26, B24-B26) and top-right (AG24-AG26,
     AH24-AH26) corners. Net names: NetU1_A24, NetU1_A25, NetU1_A26, NetU1_AG24, NetU1_AG25, NetU1_AG26

  c) 8 REF (reference electrode) pads located at:
     Row D: D4, D5, D10, D11, D16, D17, D22, D23
     These form a distributed reference grid across the electrode
     array at regular intervals.

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Generated from NYX512_pad_map.csv
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