forked from M-Labs/artiq
manual: document DDS and SPI RTIO channels
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@ -50,6 +50,10 @@ With the QC1 hardware, the TTL lines are mapped as follows:
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| 19 | TTL15 | Clock |
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+--------------+------------+--------------+
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There are no SPI channels.
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The DDS bus is on channel 20.
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NIST CLOCK
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++++++++++
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@ -105,6 +109,9 @@ To avoid I/O contention, the startup kernel should first program the TCA6424A ex
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See :mod:`artiq.coredevice.i2c` for more details.
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There are no SPI channels.
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The QC2 hardware has two DDS buses, on channels TODO for LPC and TODO for HPC.
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Pipistrello
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-----------
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@ -149,3 +156,5 @@ Interface Type 2 (SPI) and 2A (expanded SPI):
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+==============+========+========+========+========+
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| 23 | PMOD_0 | PMOD_1 | PMOD_2 | PMOD_3 |
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+--------------+--------+--------+--------+--------+
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The DDS bus is on channel 24.
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