URL https://opencores.org/ocsvn/pit/pit/trunk

Subversion Repositories pit

[/] [pit/] [trunk/] [rtl/] [sys_verilog/] [pit_count.sv] - Diff between revs 21 and 22

Rev 21	Rev 22
Line 65...	Line 65...
`assign rollover = ((cnt_n == mod_value) \|\| no_div) && prescale_out;`	`assign rollover = ((cnt_n == mod_value) \|\| no_div) && prescale_out;`

`assign clear_counter = !counter_sync;`	`assign clear_counter = !counter_sync;`

`// Div N Counter`	`// Div N Counter`
`always @(posedge bus_clk or negedge async_rst_b)`	`always_ff @(posedge bus_clk or negedge async_rst_b)`
`if ( !async_rst_b )`	`if ( !async_rst_b )`
`cnt_n <= 1;`	`cnt_n <= 1;`
`else if ( clear_counter \|\| rollover \|\| no_div)`	`else if ( clear_counter \|\| rollover \|\| no_div)`
`cnt_n <= 1;`	`cnt_n <= 1;`
`else if ( prescale_out )`	`else if ( prescale_out )`
`cnt_n <= cnt_n + 1;`	`cnt_n <= cnt_n + 1;`

`// Counter Rollover Flag and Interrupt`	`// Counter Rollover Flag and Interrupt`
`always @(posedge bus_clk or negedge async_rst_b)`	`always_ff @(posedge bus_clk or negedge async_rst_b)`
`if ( !async_rst_b )`	`if ( !async_rst_b )`
`cnt_flag_o <= 0;`	`cnt_flag_o <= 0;`
`else if ( clear_counter \|\| pit_flg_clr)`	`else if ( clear_counter \|\| pit_flg_clr)`
`cnt_flag_o <= 0;`	`cnt_flag_o <= 0;`
`else if ( rollover )`	`else if ( rollover )`
`cnt_flag_o <= 1;`	`cnt_flag_o <= 1;`

`// PIT Output Register`	`// PIT Output Register`
`always @(posedge bus_clk or negedge async_rst_b)`	`always_ff @(posedge bus_clk or negedge async_rst_b)`
`if ( !async_rst_b )`	`if ( !async_rst_b )`
`pit_o <= 0;`	`pit_o <= 0;`
`else`	`else`
`pit_o <= rollover && counter_sync && !sync_reset;`	`pit_o <= rollover && counter_sync && !sync_reset;`