Sharp LH79524 - Matching Registers; Table 6-76. HASHBOT Register; Table 6-77. HASHBOT Fields; Table 6-78. HASHTOP Register

LH79524/LH79525 User’s Guide Ethernet MAC Controller
Version 1.0 6-49
6.3.4 Matching Registers
The matching registers allow programming specific addresses or Type IDs for matching
with incoming frames.
6.3.4.1 Hash Register Bottom (HASHBOT)
This register contains the low-order bits of the Hash Address Register (bits [31:0]). For
more information, see Section 6.1.5.2 for more information on hash addressing.
6.3.4.2 Hash Register Top (HASHTOP)
This register contains the high-order bits of the Hash Address Register (bits [63:32]). For
more information, see Section 6.1.5.2 for more information on hash addressing.
Table 6-76. HASHBOT Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD HASHBOT
RESET 0000000000000000
TYPE RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FIELD HASHBOT
RESET 0000000000000000
TYPE RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
ADDR 0xFFFC7000 + 0x90
Table 6-77. HASHBOT Fields
BITS NAME FUNCTION
31:0 HASHBOT Hash Register Bottom Bits [31:0] of the Hash Address Register.
Table 6-78. HASHTOP Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD HASHTOP
RESET 0000000000000000
TYPE RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FIELD HASHTOP
RESET 0000000000000000
TYPE RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
ADDR 0xFFFC7000 + 0x94
Table 6-79. HASHTOP Fields
BITS NAME FUNCTION
31:0 HASHTOP Hash Register Top Bits [63:32] of the Hash Address Register.