Datasheet

Intel
®
E8870 Scalable Node Controller (SNC) Datasheet 2-11
Signal Description
Itanium
®
2 Processor Bus (continued)
STBN[7:0]#
I/O
AGTL+
200 MHz
Data Strobes
Used to transfer data at the 2x rate. STBn[7:0]# is the negative
phase data strobe. Data transfer occurs when the voltage levels of
STBn and STPp are equal. SNC drives and samples STBn[7:0]#.
STBP[7:0]#
I/O
AGTL+
200 MHz
Data Strobes
Used to transfer data at the 2x rate. STBp[7:0]# is the positive
phase data strobe. Data transfer occurs when the voltage levels of
STBn and STPp are equal. SNC drives and samples STBp[7:0]#.
TND#
I/O
AGTL+
200 MHz
TLB Purge Not Done
SNC asserts TND# at the requesting node until the Purge TC is
completed globally.
SNC observed TND# to determine completion of Purge TC.
TRDY#
O
AGTL+
200 MHz
Target Ready
Indicates that the target for the host transaction is able to enter the
data transfer phase.
Table 2-4. SNC Signal List (Continued)
Signal Type Frequency Description