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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [orpsocv2/] [rtl/] [verilog/] [uart16550/] [uart_transmitter.v] - Diff between revs 360 and 363

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Rev 360	Rev 363
Line 267...	Line 267...
`begin`	`begin`
`counter <= 0;`	`counter <= 0;`
`tstate <= s_send_byte;`	`tstate <= s_send_byte;`
`end`	`end`
`else`	`else`
`counter <= counter - 1'b1;`	`counter <= counter - 5'd1;`
`stx_o_tmp <= 1'b0;`	`stx_o_tmp <= 1'b0;`
`end`	`end`
`s_send_byte : begin`	`s_send_byte : begin`
`if (~\|counter)`	`if (~\|counter)`
`counter <= 5'b01111;`	`counter <= 5'b01111;`
`else`	`else`
`if (counter == 5'b00001)`	`if (counter == 5'b00001)`
`begin`	`begin`
`if (bit_counter > 3'b0)`	`if (bit_counter > 3'b0)`
`begin`	`begin`
`bit_counter <= bit_counter - 1'b1;`	`bit_counter <= bit_counter - 3'd1;`
`{shift_out[5:0],bit_out } <= {shift_out[6:1], shift_out[0]};`	`{shift_out[5:0],bit_out } <= {shift_out[6:1], shift_out[0]};`
`tstate <= s_send_byte;`	`tstate <= s_send_byte;`
`end`	`end`
`else // end of byte`	`else // end of byte`
if (~lcr[`UART_LC_PE])	if (~lcr[`UART_LC_PE])
Line 300...	Line 300...
`tstate <= s_send_parity;`	`tstate <= s_send_parity;`
`end`	`end`
`counter <= 0;`	`counter <= 0;`
`end`	`end`
`else`	`else`
`counter <= counter - 1'b1;`	`counter <= counter - 5'd1;`
`stx_o_tmp <= bit_out; // set output pin`	`stx_o_tmp <= bit_out; // set output pin`
`end`	`end`
`s_send_parity : begin`	`s_send_parity : begin`
`if (~\|counter)`	`if (~\|counter)`
`counter <= 5'b01111;`	`counter <= 5'b01111;`
`else`	`else`
`if (counter == 5'b00001)`	`if (counter == 5'b00001)`
`begin`	`begin`
`counter <= 4'b0;`	`counter <= 5'd0;`
`tstate <= s_send_stop;`	`tstate <= s_send_stop;`
`end`	`end`
`else`	`else`
`counter <= counter - 1'b1;`	`counter <= counter - 5'd1;`
`stx_o_tmp <= bit_out;`	`stx_o_tmp <= bit_out;`
`end`	`end`
`s_send_stop : begin`	`s_send_stop : begin`
`if (~\|counter)`	`if (~\|counter)`
`begin`	`begin`
casex ({lcr[`UART_LC_SB],lcr[`UART_LC_BITS]})	casez ({lcr[`UART_LC_SB],lcr[`UART_LC_BITS]})
`3'b0xx: counter <= 5'b01101; // 1 stop bit ok igor`	`3'b0??: counter <= 5'b01101; // 1 stop bit ok igor`
`3'b100: counter <= 5'b10101; // 1.5 stop bit`	`3'b100: counter <= 5'b10101; // 1.5 stop bit`
`default: counter <= 5'b11101; // 2 stop bits`	`default: counter <= 5'b11101; // 2 stop bits`
`endcase`	`endcase`
`end`	`end`
`else`	`else`
Line 332...	Line 332...
`begin`	`begin`
`counter <= 0;`	`counter <= 0;`
`tstate <= s_idle;`	`tstate <= s_idle;`
`end`	`end`
`else`	`else`
`counter <= counter - 1'b1;`	`counter <= counter - 5'd1;`
`stx_o_tmp <= 1'b1;`	`stx_o_tmp <= 1'b1;`
`end`	`end`

`default : // should never get here`	`default : // should never get here`
`tstate <= s_idle;`	`tstate <= s_idle;`

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[/] [openrisc/] [trunk/] [orpsocv2/] [rtl/] [verilog/] [uart16550/] [uart_transmitter.v] - Diff between revs 360 and 363