Snoop Under Hold During Pseudo-Locked Cycles; Snoop Under Ahold Overlaying Pseudo-Locked Cycle - Intel Quark SoC X1000 Core Developer's Manual

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Bus Operation—Intel Quark Core
Figure 124. Snoop under AHOLD Overlaying Pseudo-Locked Cycle
CLK
AHOLD
EADS#
INV
HITM#
A31–A4
A3–A2
ADS#
BLAST#
CACHE#
PLOCK#
W/R#
BRDY#
†
10.4.6.2

Snoop under HOLD during Pseudo-Locked Cycles

As shown in
Back Enhanced Intel
After the 64-bit transfer is completed, the Write-Back Enhanced Intel
X1000 Core writes back the modified line to memory (if snoop hits a modified line). If
the 64-bit transfer is non-burst, the Write-Back Enhanced Intel
Core can issue HLDA in between bus cycles for a 64-bit transfer.
October 2013
Order Number: 329679-001US
1 2 3 4 5 6
†
To Processor
Figure 125, HOLD does not fracture the 64-bit burst transfer. The Write-
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Quark SoC X1000 Core does not issue HLDA until clock four.
7 8 9 10 11 12
Write Back Cycle
0 4 8 C
13 14 15 16 17 18
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Quark SoC
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Quark SoC X1000
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Intel Quark SoC X1000 Core
Developer's Manual
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