Electrical Specifications

32581C

9.3.7LPC Interface

Table 9-22. LPC and SERIRQ Timing Parameters

Symbol

Parameter

Min

Max

Unit

Comments

 

 

 

 

 

 

tVAL

Output Valid delay

0

17

ns

After PCICLK rising edge

tON

Float to Active delay

2

 

ns

After PCICLK rising edge

tOFF

Active to Float delay

 

28

ns

After PCICLK rising edge

tSU

Input Setup time

7

 

ns

Before PCICLK rising edge

tHI

Input Hold time

0

 

ns

After PCICLK rising edge

PCICLK

tVAL

tON

LPC Signals/

SERIRQ

tOFF

Figure 9-21. LPC Output Timing Diagram

PCICLK

 

 

 

 

tSU

tHI

LPC Signals/

 

 

 

 

 

 

 

 

Input

 

SERIRQ

 

Valid

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 9-22. LPC Input Timing Diagram

AMD Geode™ SC3200 Processor Data Book

381

Page 381
Image 381
AMD SC3200 manual LPC Interface 22. LPC and Serirq Timing Parameters