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Rev 73 |
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FAST_SHIFT_EN : boolean := false; -- use barrel shifter for shift operations
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FAST_SHIFT_EN : boolean := false; -- use barrel shifter for shift operations
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CPU_CNT_WIDTH : natural := 64; -- total width of CPU cycle and instret counters (0..64)
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CPU_CNT_WIDTH : natural := 64; -- total width of CPU cycle and instret counters (0..64)
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CPU_IPB_ENTRIES : natural := 2; -- entries is instruction prefetch buffer, has to be a power of 2
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CPU_IPB_ENTRIES : natural := 2; -- entries is instruction prefetch buffer, has to be a power of 2
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-- Physical Memory Protection (PMP) --
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-- Physical Memory Protection (PMP) --
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PMP_NUM_REGIONS : natural := 0; -- number of regions (0..64)
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PMP_NUM_REGIONS : natural := 0; -- number of regions (0..16)
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PMP_MIN_GRANULARITY : natural := 64*1024; -- minimal region granularity in bytes, has to be a power of 2, min 8 bytes
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PMP_MIN_GRANULARITY : natural := 4; -- minimal region granularity in bytes, has to be a power of 2, min 4 bytes
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-- Hardware Performance Monitors (HPM) --
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-- Hardware Performance Monitors (HPM) --
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HPM_NUM_CNTS : natural := 0; -- number of implemented HPM counters (0..29)
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HPM_NUM_CNTS : natural := 0; -- number of implemented HPM counters (0..29)
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HPM_CNT_WIDTH : natural := 40; -- total size of HPM counters (0..64)
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HPM_CNT_WIDTH : natural := 40; -- total size of HPM counters (0..64)
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