Specifications

Intel
®
Quark Core—Bus Operation
Intel
®
Quark SoC X1000 Core
Developer’s Manual October 2013
244 Order Number: 329679-001US
Figure 125. Snoop under HOLD Overlaying Pseudo-Locked Cycle
10.4.6.3 Snoop under BOFF# Overlaying a Pseudo-Locked Cycle
BOFF# is capable of fracturing any bus operation. In Figure 126, BOFF# fractured a
current 64-bit read cycle in clock four. If there is a snoop hit under BOFF#, the snoop
write-back operation begins after BOFF# is deasserted. The 64-bit write cycle resumes
after the snoop write-back operation completes.
242202-162
CLK
HOLD
EADS#
HITM#
A31–A4
A3–A2
ADS#
12345678910111213141516171819
BLAST#
CACHE#
To Processor
W/R#
0 4 8 C
INV
PLOCK#
BRDY#
HLDA
64-Bit
Read Cycle
Write Back Cycle
†
†