301467-005 Datasheet, PDF (401/426 Pages) Intel Corporation – Express Chipset

Testability
R
15.4 XOR Chain Definition
The 82915G/82915GV/82915GL/82910GL GMCH, and the 82915P/ 82915PL MCH each have
10 XOR chains. The XOR chain outputs are driven out on the following output pins. During full-
width testing, XOR chain outputs are visible on both pins. For example, xor_out0 is visible on
BSEL2.
Table 15-2. XOR Chain Outputs for both DDR and DDR2
XOR Chain
xor_out0
xor_out1
xor_out2
xor_out3
xor_out4
xor_out5
xor_out6
xor_out7
xor_out8
xor_out9
Output Pins
BSEL2
RSV
RSV
MTYPE
EXP_SLR
RSV
RSV
RSV
BSEL0
BSEL1
Coordinate Location
D17
M16
F15
C15
A16
B15
C14
K15
H16
E15
15.5 DDR XOR Chains
The tables in this section show the DDR XOR chains. The last section in this chapter has a pin
exclusion list. The chain files are golden, if there is a pin missing from the chain files and
exclusion list, it should be added to the exclusion list.
Note: The DDR XOR Chain information is based on the 82915G GMCH. Differences for the
82915GV/82915GL/82910GL GMCH and 82915P/82915PL MCH are indicated in the
“Comments” column.
Datasheet
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