Intel C2518 FH8065501516710 Data Sheet

Product codes
FH8065501516710
Page of 746
Volume 2—Platform Controller Unit (PCU)—C2000 Product Family
Soft Straps
Intel
®
 Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
362
Order Number: 330061-002US
16.4
Soft Straps
The following section provides details related to the storage and configuration of soft 
straps which are used to determine the native function for each specific capability.
Soft strap information is stored within the Flash Descriptor region 0 of the SPI firmware 
image. The start address of the soft strap definition space is located within the Flash 
Map 1 register within the Flash Strap Base Address Register (FLMAP1[23:16]) field 
referred to as FISBA. See 
16.4.1
Flash Descriptor Soft Strap Definition
The default value represents the internal strap signal value used if the SPI Flash is not 
valid. 
At boot, the SPI controller reads the soft strap content from the SPI Flash and then 
provides this soft strap content to the various SoC controllers.
Table 16-5. Flash Descriptor Soft Strap (Sheet 1 of 10)
FITC
SoC 
Strap
Number
FISBA
+
Offset
Bit 
Offset
Soft Strap Name
Description
Default
0
+ 0h
1:0
BBS
SPI Boot Block Size:
2'b00: 64 KB (Default)
2'b01: 128 KB
2'b10: 256 KB
2'b11: Reserved
2'b00
0
+ 0h
2
Intel
®
 QuickAssist 
Technology
Disable (SKU 
Specific)
Intel
®
 QuickAssist Technology (B0:D11) Disable:
1'b0 (false) - Enable
1'b1 (true) - Disable
Note:
Has no effect if the SKU does not have Intel
®
 
QuickAssist Technology
1'b0
0
+ 0h
3
SATA 3
Disable
SATA 3 (B0:D24) Disable:
1'b0 (false) - Enable
1'b1 (true) - Disable
Note:
Ensure these soft straps are set to match this selection.
• SoC Strap 6 SATA 3 Power Enable Lane 0
• SoC Strap 6 SATA 3 Power Enable Lane 1
• SoC Strap 6 SATA 3 Power Enable
1'b0
0
+ 0h
4
Reserved
Reserved
1’b0
0
+ 0h
5
GbE Port 1
Disable
GbE Port 1 (B0:D20:F1) Disabled:
1'b0 (false) - Enable
1'b1 (true) - Disable
1'b0
0
+ 0h
6
GbE Port 2
Disable
GbE Port 2 (B0:D20:F2) Disabled:
1'b0 (false) - Enable
1'b1 (true) - Disable
1'b0
0
+ 0h
7
GbE Port 3
Disable
GbE Port 3 (B0:D20:F3) Disabled:
1'b0 (false) - Enable
1'b1 (true) - Disable
1'b0