VLSICAD-2013习题课2浅析.ppt

SOC和SOP、SIP SoC：System-on-Chip（片上系统）:把不同的功能模块集成到一个芯片。 SiP：System-in-Package（内封装系统）:一个封装包含多个芯片。 SoP：System-on-Package（全集成封装系统）：利用薄膜技术把无源元件嵌入到封装中。 布线通道中轨道（track），主干（trunk），枝干（branch），曲干或狗腿（dogleg）。 布线通道中轨道（track），主干（trunk），枝干（branch），曲干或狗腿（dogleg）。 PSpice应用中最重要的一个概念Simulation Profile(模拟类型分组) Simulation Profile(模拟类型分组)及每组包括的分析功能类型 Use the Rivest-fiduccia method to route this channel. A A A B B G G G D D E E F F F C C H H H H Step 1 ---net A and B, rule 5: see above figure. Step 2 --- rule 4 on nets A and B: see figure below. A A A B B G G G D D E E F F F C C H H H H A A A B B G G G D D E E F F F C C H H H H Step3--rule 5 on nets G and D: A A A B B G G G D D E E F F F C C H H H H Step 4: rule 5 on net H: A A A B B G G G D D E E F F F C C H H H H Step 5: rule 2 on nets A and H: A A A B B G G G D D E E F F F C C H H H H Step 6: rule 5 on nets C and F, rule 4 on H: A A A B B G G G D D E E F F F C C H H H H Step 7: connect and terminate nets B and D, rule 4 on C: A A A B B G G G D D E E F F F C C H H H H Step 8: connect G and H: A A A B B G G G D D E E F F F C C H H H H Step 9: rule 4 on C, E, G, and H, connect F: A A A B B G G G D D E E F F F C C H H H H Step 10: connect and terminate E and G, rule 4 on H : A A A B B G G G D D E E F F F C C H H H H Step 11: rule 4 on A, C, F : A A A B B G G G D D E E F F F C C H H H H Step 12: connect and terminate A, rule 4 on C, F : A A A B B G G G D D E E F F F C C H H H H Step 13: connect and terminate C and F : Determine a routing for these two channels using the minimum number of doglegs and the minimum number of tracks. The dashed lines denote available tracks. c a b b a d c a d 用贪婪算法对下列通道布线。 Greedy Router: Rivest and Fiduccia Pins with the same name in the floorplan below are on the same net. Design a global route, equalizing channel utilization and wire lengths. A B C D E F i1 i1 i2 i2 O9 o9 a a a b b b O9 i5 i5 i3 i3 i3 c d b f e c i4 i5 d i6 e o8 o7 o6 o8 o7 o5 o4 o3 i6 o6 o5 o4 o1 o2 o4 i4 f A B C D E F i1 i1 i2 i2 O