Achronix Speedster22i User Macro Guide Manual do Utilizador Página 113

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Memories BRAM80K
Speedster22i Macro Cell Library
AchronixSemiconductorProprietary PAGE 96
Table 6-8: dina(dinb) bit assignments per porta_write_width(portb_write_width) values
porta_write_width,
portb_write_width
dinpxa[3:0],
dinpxb[3:0]
dinpa[3:0],
dinpb[3:0]
dina[31:0], dinb[31:0]
user_din[39:36] user_din[35:32] user_din[31:0]
4’hx user_din[35:32] user_din[31:0]
4’hx 4’hx user_din[31:0]
2’bxx,user_din[19:18] 2’bxx,user_din[17:16] 16’hxxxx,user_
din[15:0]
4’hx user_din[17:16] 16’hxxxx,user_
din[15:0]
4’hx 4’hx 16’hxxxx,user_
din[15:0]
3’bxxx,user_din[9] 3’bxxx,user_din[8] 24’hxxxxxx,user_din[7:0]
4’hx 3’bxxx,user_din[8] 24’hxxxxxx,user_din[7:0]
4’hx 4’hx 24’hxxxxxx,user_din[7:0]
4’hx 3’bxxx,user_din[4] 28’hxxxxxxx,user_din[3:0]
4’hx 4’hx 28’hxxxxxxx,user_din[3:0]
4’hx 4’hx 30’hxxxxxxxx,user_din[1:0]
4’hx 4’hx 31’hxxxxxxxx,user_din[0]
Table 6-9: Write Enable to Data Input Bus Mapping per Write Port Width
porta_write_width
(portb_write_width)
wea[3]
(web[3])
wea[2]
(web[2])
wea[1]
(web[1])
wea[0]
(web[0])
dinpx[3],dinp[3],
din[31:24]
dinpx[2],dinp[2],
din[23:16]
dinpx[1],dinp[1],
din[15:8]
dinpx[0],dinp[0],
din[7:0]
dinp[3],
din[
31:24]
dinp[2],
din[23:16]
dinp[1],
din[15:8]
dinp[0], din[7:0]
din[31:24] din[23:16] din[15:8] din[7:0]
dinpx[1],dinp[1],
din[15:8]
dinpx[0],dinp[0],
din[7:0]
dinpx[1],dinp[1],
din[15:8]
dinpx[0],dinp[0],
din[
7:0]
dinp[1],
din[15:8]
dinp[0], din[7:0] dinp[1],
din[15:8]
dinp[0], din[7:0]
din[15:8] din[7:0] din[15:8] din[7:0]
dinpx[0],dinp[0],
din[
7:0]
dinpx[0],dinp[0],
din[7:0]
dinpx[0],dinp[0],
din[7:0]
dinpx[0],dinp[0],
din[7:0]
dinp[0], din[7:0] dinp[0], din[7:0] dinp[0], din[7:0] dinp[0], din[7:0]
din[7:0] din[7:0] din[7:0] din[7:0]
dinp[0], din[3:0] dinp[0], din[3:0] dinp[0], din[3:0] dinp[0], din[3:0]
din[3:0] din[3:0] din[3:0] din[3:0]
din[1:0] din[1:0] din[1:0] din[1:0]
din[0] din[0] din[0] din[0]
40
36
32
20
18
16
10
9
8
5
4
2
1
40
36
32
20
18
16
10
9
8
5
4
2
1
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