
Chapter 3
Functional Operation
127
24674
Rev. 3.00
April 2003
AMD-8111 HyperTransport I/O Hub Data Sheet
AMD Preliminary Information
The first two 40-bit words in the PMR serve as pointers and contain enable bits for the eight possible
match patterns. The format of the first two words is shown in Table 36 on page 127.
The remainder of the RAM contains the match patterns and associated match pattern control bits. The
format of words 2-63 is shown in Table 37.
Table 36.
Format of PMR Pointer Words
Word
0
Bits
0
Description
Pattern 0 Enable. When this bit is 1, pattern 0 is compared with incoming data. When this bit
is 0, pattern 0 is ignored.
Pattern 1 Enable. When this bit is 1, pattern 1 is compared with incoming data. When this bit
is 0, pattern 1 is ignored.
Pattern 2 Enable. When this bit is 1, pattern 2 is compared with incoming data. When this bit
is 0, pattern 2 is ignored.
Pattern 3 Enable. When this bit is 1, pattern 3 is compared with incoming data. When this bit
is 0, pattern 3 is ignored.
Reserved. This
fi
eld is ignored.
Pattern 0 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 0.
16-23 Pattern 1 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 1.
24-31 Pattern 2 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 2.
32-39 Pattern 3 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 3.
0
Pattern 4 Enable. When this bit is 1, pattern 4 is compared with incoming data. When this bit
is 0, pattern 4 is ignored.
1
Pattern 5 Enable. When this bit is 1, pattern 5 is compared with incoming data. When this bit
is 0, pattern 5 is ignored.
2
Pattern 6 Enable. When this bit is 1, pattern 6 is compared with incoming data. When this bit
is 0, pattern 6 is ignored.
3
Pattern 7 Enable. When this bit is 1, pattern 7 is compared with incoming data. When this bit
is 0, pattern 7 is ignored.
4-7
Reserved. This
fi
eld is ignored.
8-15
Pattern 4 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 4.
16-23 Pattern 5 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 5.
24-31 Pattern 6 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 6.
32-39 Pattern 7 Pointer. This
fi
eld contains the PMR address of the
fi
rst word of pattern 7.
1
2
3
4-7
8-15
1
Table 37.
Format of PMR Data Words
Bits
0-3
Description
Mask. This bit mask determines which of the 4 bytes in this word are compared with frame data. Bits 0
to 3 correspond to bytes 1 to 4, respectively. A 1 in a bit position means that the corresponding byte is
compared with frame data. A 0 in a bit position means that the corresponding byte is ignored in the
comparison. For example, if the value of the mask
fi
eld is 5, bytes 1 and 3 are compared with frame
data and bytes 2 and 4 are ignored.