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Line 177... |
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-- system time input from external MTIME (available if IO_MTIME_EN = false) --
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-- system time input from external MTIME (available if IO_MTIME_EN = false) --
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mtime_i : in std_ulogic_vector(63 downto 0) := (others => '0'); -- current system time
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mtime_i : in std_ulogic_vector(63 downto 0) := (others => '0'); -- current system time
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-- Interrupts --
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-- Interrupts --
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nm_irq_i : in std_ulogic := '0'; -- non-maskable interrupt
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soc_firq_i : in std_ulogic_vector(5 downto 0) := (others => '0'); -- fast interrupt channels
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soc_firq_i : in std_ulogic_vector(5 downto 0) := (others => '0'); -- fast interrupt channels
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mtime_irq_i : in std_ulogic := '0'; -- machine timer interrupt, available if IO_MTIME_EN = false
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mtime_irq_i : in std_ulogic := '0'; -- machine timer interrupt, available if IO_MTIME_EN = false
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msw_irq_i : in std_ulogic := '0'; -- machine software interrupt
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msw_irq_i : in std_ulogic := '0'; -- machine software interrupt
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mext_irq_i : in std_ulogic := '0' -- machine external interrupt
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mext_irq_i : in std_ulogic := '0' -- machine external interrupt
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);
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);
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Line 454... |
d_bus_err_i => cpu_d.err, -- bus transfer error
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d_bus_err_i => cpu_d.err, -- bus transfer error
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d_bus_fence_o => cpu_d.fence, -- executed FENCE operation
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d_bus_fence_o => cpu_d.fence, -- executed FENCE operation
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d_bus_priv_o => cpu_d.priv, -- privilege level
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d_bus_priv_o => cpu_d.priv, -- privilege level
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-- system time input from MTIME --
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-- system time input from MTIME --
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time_i => mtime_time, -- current system time
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time_i => mtime_time, -- current system time
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-- non-maskable interrupt --
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nm_irq_i => nm_irq_i, -- NMI
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-- interrupts (risc-v compliant) --
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-- interrupts (risc-v compliant) --
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msw_irq_i => msw_irq_i, -- machine software interrupt
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msw_irq_i => msw_irq_i, -- machine software interrupt
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mext_irq_i => mext_irq_i, -- machine external interrupt request
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mext_irq_i => mext_irq_i, -- machine external interrupt request
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mtime_irq_i => mtime_irq, -- machine timer interrupt
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mtime_irq_i => mtime_irq, -- machine timer interrupt
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-- fast interrupts (custom) --
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-- fast interrupts (custom) --
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Line 486... |
fast_irq(07) <= twi_irq; -- TWI transmission done
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fast_irq(07) <= twi_irq; -- TWI transmission done
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fast_irq(08) <= gpio_irq; -- GPIO pin-change
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fast_irq(08) <= gpio_irq; -- GPIO pin-change
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fast_irq(09) <= neoled_irq; -- NEOLED buffer free
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fast_irq(09) <= neoled_irq; -- NEOLED buffer free
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-- fast interrupts - platform level (for custom use) --
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-- fast interrupts - platform level (for custom use) --
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soc_firq_sync: process(clk_i)
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begin
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if rising_edge(clk_i) then -- make sure they are sync
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fast_irq(10) <= soc_firq_i(0);
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fast_irq(10) <= soc_firq_i(0);
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fast_irq(11) <= soc_firq_i(1);
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fast_irq(11) <= soc_firq_i(1);
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fast_irq(12) <= soc_firq_i(2);
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fast_irq(12) <= soc_firq_i(2);
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fast_irq(13) <= soc_firq_i(3);
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fast_irq(13) <= soc_firq_i(3);
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fast_irq(14) <= soc_firq_i(4);
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fast_irq(14) <= soc_firq_i(4);
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fast_irq(15) <= soc_firq_i(5);
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fast_irq(15) <= soc_firq_i(5);
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end if;
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end process soc_firq_sync;
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-- CFS IRQ acknowledge --
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-- CFS IRQ acknowledge --
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cfs_irq_ack <= fast_irq_ack(1);
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cfs_irq_ack <= fast_irq_ack(1);
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