131 lines
2.7 KiB
ReStructuredText
131 lines
2.7 KiB
ReStructuredText
Bitstream Commands
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===================
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CMD_PATH
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---------
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To be able to specify die to program it is required to properly forward JTAG to specific
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direction and set mode accordingly. To program first die we use 0x10 value for this command
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and it first one to be executed.
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.. list-table::
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:widths: 10 40
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:header-rows: 1
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* - Bit
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- Description
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* - 0
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- Reset to default state
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* - 1
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- Set to path to top
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* - 2
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- Set to path to right
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* - 3
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- Enable forwarding mode
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* - 4
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- Enable programming mode
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.. warning::
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This command have data after payload, and it consists of 9 bytes ``0x00 0x00 0x00 0x00 0x33 0x00 0x00 0x00 0x00`` and
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it is used to execute this JTAG command.
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CMD_LXLYS
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----------
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Before sending any configuration data it is required to specify location of a specific TILE, and for latch configuration that configures all
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logic and IO blocks it is this command.
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.. list-table::
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:widths: 10 10 40
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:header-rows: 1
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* - Byte
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- Range
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- Description
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* - 0
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- 0..81
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- X location (column)
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* - 1
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- 0..65
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- Y location (row)
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CMD_DLXP
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---------
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Alternate way of setting location for configuration data is by setting pattern for both column and row.
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This commands sets row pattern and each bit represent one of the rows. There are total of 9 bytes used in payload.
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CMD_DLYP
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---------
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This commands sets column pattern and each bit represent one of the columns. There are total of 11 bytes used in payload.
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CMD_DLCU
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After location is set with one of previous commands, it is required to set a data payload.
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For configuring logic and IO tiles data payload is 112 bytes max. Payload can be smaller, but programming
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will act as it is zero padded till full size.
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This command is also used to configure RAM blocks, there we expect 27 bytes of payload maximum.
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CMD_RXRYS
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----------
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Similar to **CMD_LXLYS** command, there is a command to specify RAM block to program.
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.. list-table::
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:widths: 10 10 40
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:header-rows: 1
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* - Byte
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- Range
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- Description
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* - 0
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- 0..3
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- X location (column)
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* - 1
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- 0..7
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- Y location (row)
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CMD_DRXP
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---------
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As alternative to **CMD_RXRYS** command we can use this one to specify a pattern, note that
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each bit of one byte payload is used to set one of 4 columns.
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CMD_CFGRST
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-----------
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Resets all configuration latches to value of a byte from payload.
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CMD_PLL
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--------
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CMD_CFGMODE
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------------
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CMD_FLASH
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----------
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CMD_ACLCU
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----------
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CMD_FRAM
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---------
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CMD_SERDES
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-----------
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CMD_D2D
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--------
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CMD_JUMP
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--------
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CMD_CHG_STATUS
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---------------
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CMD_WAIT_PLL
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-------------
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CMD_SPLL
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---------
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CMD_SLAVE_MODE
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---------------
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