本帖最后由 William_2010 于 2010-11-3 22:20 编辑
Resume Reset from Motherboard –
Assertion of RSMRST# resets all SB750 registers to their
default values. It also causes all reset signals originating
from the SB750 (A_RST#, PCIRST#, LDT_RST#,
AZ_RST#, AC_RST#) to be issued. RSRMT# should be
asserted when system power is being applied. Type-I straps
are captured on the rising edge of RSRMT# during its deassertion.
RSMRST# should be de-asserted sometime after
S5 power is up, and should stay de-asserted until system
power is removed.
还有那个红色的 strap 在Datasheet里面经常出现,是什么意思啊? |