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Line 57... |
rden_i : in std_ulogic; -- read enable
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rden_i : in std_ulogic; -- read enable
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wren_i : in std_ulogic; -- word write enable
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wren_i : in std_ulogic; -- word write enable
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data_i : in std_ulogic_vector(31 downto 0); -- data in
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data_i : in std_ulogic_vector(31 downto 0); -- data in
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data_o : out std_ulogic_vector(31 downto 0); -- data out
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data_o : out std_ulogic_vector(31 downto 0); -- data out
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ack_o : out std_ulogic; -- transfer acknowledge
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ack_o : out std_ulogic; -- transfer acknowledge
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err_o : out std_ulogic; -- transfer error
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-- clock generator --
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-- clock generator --
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clkgen_en_o : out std_ulogic; -- enable clock generator
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clkgen_en_o : out std_ulogic; -- enable clock generator
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clkgen_i : in std_ulogic_vector(07 downto 0); -- "clock" inputs
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clkgen_i : in std_ulogic_vector(07 downto 0); -- "clock" inputs
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-- interrupt --
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-- interrupt --
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irq_o : out std_ulogic; -- interrupt request
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irq_o : out std_ulogic; -- interrupt request
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Line 100... |
rden <= acc_en and rden_i; -- the read access is always a full 32-bit word wide; if required, the byte/half-word select/masking is done in the CPU
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rden <= acc_en and rden_i; -- the read access is always a full 32-bit word wide; if required, the byte/half-word select/masking is done in the CPU
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-- NOTE: Do not modify the CFS base address or the CFS' occupied address space as this might cause access
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-- NOTE: Do not modify the CFS base address or the CFS' occupied address space as this might cause access
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-- collisions with other modules.
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-- collisions with other modules.
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-- This module provides an ERROR signal to signal a faulty access operation to the CPU.
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-- It can be used to indicate an invalid access (for example to an unused CFS register address) or to signal
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-- a faulty state (like "not operational yet"). The error signal can be checked be checked by the applications
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-- "bus access fault" exception handler (provided by the system's BUSKEEPER module).
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-- This signal may only be set when the module is actually accessed! Tie to zero if not explicitly used.
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err_o <= '0';
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-- CFS Generics ---------------------------------------------------------------------------
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-- CFS Generics ---------------------------------------------------------------------------
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-- -------------------------------------------------------------------------------------------
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-- -------------------------------------------------------------------------------------------
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-- In its default version, the CFS provides the configuration generics. single generic:
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-- In its default version, the CFS provides the configuration generics. single generic:
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-- CFS_IN_SIZE configures the size (in bits) of the CFS input conduit cfs_in_i
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-- CFS_IN_SIZE configures the size (in bits) of the CFS input conduit cfs_in_i
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