usiepktdef.v
来自「实现USB接口功能的VHDL和verilog完整源代码」· Verilog 代码 · 共 33 行
V
33 行
/******************************************
Filename: siepktdef.v 1.3
******************************************/
/*
// decoded state machine deinitions for pkt states
parameter [3:0]
PKTIDLE = 4'b0000,
PKTSYNC = 4'b0001,
PKTDPID = 4'b0010,
PKTDATA = 4'b0011,
PKTCRC16 = 4'b0100,
PKTNAK = 4'b0101,
PKTACK = 4'b0110,
PKTSTALL = 4'b0111,
PKTERROR = 4'b1000,
PKTEOP = 4'b1001;
*/
// converted to one-hot for fpga synth
parameter [9:0]
PKTIDLE = 10'b0000000001,
PKTSYNC = 10'b0000000010,
PKTDPID = 10'b0000000100,
PKTDATA = 10'b0000001000,
PKTCRC16 = 10'b0000010000,
PKTNAK = 10'b0000100000,
PKTACK = 10'b0001000000,
PKTSTALL = 10'b0010000000,
PKTERROR = 10'b0100000000,
PKTEOP = 10'b1000000000;
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