|
|
! g1 M. s" m/ g- a6 n
最好自己写网表,不会太难的。简单例子% ?- I' v1 w0 f1 r5 t, P' G& K6 `
+ b# _* L% x) G8 {7 u: G* Use IBIS model without package RLC+ J r& X* u9 |, O" u: q* N. N( H
! \8 Z; n1 r' s.option post probe dcon= 1 C- O! D- W. C
.parameter Bit_Rate='1600meg' UI='1/Bit_Rate'
}) X: U$ Z9 w" K/ x) O \+ }( M' [0 J7 B0 a6 [$ M
vPRBS CA_in1 gnd LFSR (0v 1v 0p 100P 100P 'Bit_Rate' 3 [5, 2] rout=0.1)
: @! J3 p8 Q8 ]( P$ F
2 }! i2 g; L3 {7 qB_CA1 pup pdown CA_pad1 CA_in1 pwr GND
% s0 w; \5 P: ^2 X+file = '\Proj\lib\ddr3.ibs'
. k7 p- \2 m' {5 d+model = 'A_34'
. h" u$ c4 O" a+typ=typ power=on buffer=output interpol=1
3 J" O0 C& ~2 |# S! N% m% f+ R: s
: \2 E5 b/ p# [" M# FB_DQ1 pup pdown DQ_pad1 DQ_in1 en1 DQ_id pwr GND6 l4 K% V8 D: e
+file = '\Proj\lib\ddr3.ibs'
% |/ { D) G, }' m4 `+model = 'DQ_34_ODToff'
6 r- |8 N# s, c0 Y) O5 I k. k+typ=typ power=on buffer=input_output interpol=18 J3 Z) H( z" E- O
$ w' E6 ?. {. q" X3 ~ ^$ J
ven1 en1 gnd 0v' [& z# i4 ^% ]7 q
t1 CA_pad1 GND DQ_pad1 GND z0=50 TD=100p9 F7 j! l" }4 o+ d4 O6 N% u
- g* e! u& V, \% L8 y0 M8 f% I.tran 10p 50n
" r2 o/ s3 [% g' g.probe v(*)0 R* T7 `5 G! V; V) T" y# w1 i
# Q+ Z( M, e! y$ K% C$ A
.end |
|