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IXF1104 4-Port Gigabit Ethernet Media Access Controller
Datasheet 215
Document Number: 278757
Revision Number: 007
Revision Date: March 25, 2004
25 B2B_PAUSE Port 1
SPHY Mode:
Indicates the number of pause cycles to be
introduced between back-to-back transfers for
port 1.
0 = Zero pause cycles
1 = Two pause cycles
MPHY Mode:
NA
R/W 0
24 B2B_PAUSE Port 0
SPHY Mode:
Indicates the number of pause cycles to be
introduced between back-to-back transfers for
port 0.
0 = Zero pause cycles
1 = Two pause cycles
MPHY Mode:
Indicates the number of pause cycles to be
introduced between back-to-back transfers for all
ports.
0 = Zero pause cycles
1 = Two pause cycles
R/W 0
23:22 RX_BURST Port 3
SPHY Mode:
Selects the maximum burst size on the RX path
for port 3.
0x = 64 bytes maximum burst size
10 =128 bytes maximum burst size
11 = 256 bytes maximum burst size
MPHY Mode:
NA
R/W 0x0
21:20 RX_BURST Port 2
SPHY Mode:
Selects the maximum burst size on the RX path
for port 2.
0x = 64 bytes maximum burst size
10 =128 bytes maximum burst size
11 = 256 bytes maximum burst size
MPHY Mode:
NA
R/W 0x0
19:18 RX_BURST Port 1
SPHY Mode:
Selects the maximum burst size on the RX path
for port 1.
0x = 64 bytes maximum burst size
10 =128 bytes maximum burst size
11 = 256 bytes maximum burst size
MPHY Mode:
NA
R/W 0x0
Table 147. SPI3 Receive Configuration ($0x701) (Continued)
Bit Name Description Type
1
Default
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
clear; R/W/C = Read/Write, Clear on Write