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| Scroll pdf title |
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| title | SPI pin-out summary; SPI signal details (bank 2). |
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name | FPGA | ballFPGA pin | J5 pin | SPI_Q | IO_L03N_2 | no | SPI_D | IO_L16N_2 | no | SPI_/C | | IO_L26N_2 | no | SPI_/S | | IO_L01P_2 | no |
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| Warning |
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SPI pins on B2B connector J5 cannot be used as GPIOs (general purpose I/Os).
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The SPI bus can be used during configuration and operation in a plurality of ways as summarized respectively in Table A (SPI bus for configuration) and Table B (SPI bus for operation).
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| Scroll pdf title |
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| title | Table A: SPI bus modes for configuration. |
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description | usage | EZ-USB FX2LP | FPGA | B2B J5 | serial Flash |
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EZ-USB â-º Flash | OpenFUT
API | master | off
(S3 = FX2PON,
FX2_PS_EN = 0) | deselected | slave | FPGA â—„ Flash | OpenFUT
API | inactive
SPI_* = Z | master
(SPI_/S = 1) | deselected | slave | B2B J5 â-º Flash
| custom
| inactive
SPI_* = Z
| off
(S3 = FX2PON,
FX2_PS_EN = 0)
| master
(SPI_/S = 0) | slave |
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SPI
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SPI bus for operation
A plurality of usage combinations of the SPI bus during operation is made available to the user as suggested in Table B below.
| Scroll pdf title |
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| title | Table B: SPI bus modes for operation. |
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description | usage | EZ-USB FX2LP | FPGA | B2B J5 | serial Flash | EZ-USB â—„â-º Flash | custom | master | off
(S3 = FX2PON,
FX2_PS_EN = 0) | deselected | slave | FPGA â—„â-º Flash | custom | inactive
SPI_* = Z | master
(SPI_/S = 1) | deselected | slave | B2B J5 â—„â-º Flash
| custom
| inactive
SPI_* = Z
| off
(S3 = FX2PON,
FX2_PS_EN = 0)
| master
(SPI_/S = 0)
| slave
| EZ-USB â—„â-º B2B J5
| custom
| master
SPI_/S = 1
| off
(S3 = FX2PON,
FX2_PS_EN = 0)
| slave
| deselected
| EZ-USB â—„â-º B2B J5
| custom
| slave
SPI_/C = Z
| off
(S3 = FX2PON,
FX2_PS_EN = 0)
| master
(SPI_/S = 1)
| deselected |
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| Warning |
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| Other combinations of master and slave units are neither supported nor recommended. |