HPIXF1104BE.B1-994579 Cortina Systems Inc, HPIXF1104BE.B1-994579 Datasheet - Page 195

• Manufacturer Part Number: HPIXF1104BE.B1-994579
• Description: IC ETH MAC SPI3 4PORT 552-BGA
• Manufacturer: Cortina Systems Inc

Specifications of HPIXF1104BE.B1-994579

• Controller Type: Ethernet Controller, MAC
• Interface: SPI-3
• Voltage - Supply: 1.2V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 575-BCBGA Exposed Pad (552 Bumps)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 1008-1020

IXF1104 MAC
Datasheet
278757, Revision 13.2
17 September 2008
Table 132
Cortina Systems
TX FIFO Low Watermark Register Ports 0 - 3 ($0x60A – 0x60D)
®
Name
TX FIFO Low
Watermark Port 0
TX FIFO Low
Watermark Port 1
TX FIFO Low
Watermark Port 2
TX FIFO Low
Watermark Port 3
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
IXF1104 4-Port Gigabit Ethernet Media Access Controller
clear; R/W/C = Read/Write, Clear on Write
Description
Low watermark for TX FIFO Port 0. The
default value of 0x0D0 represents 208 8-byte
locations. This equates to 1664 bytes of data. A
unit entry in this register equates to 8 bytes of
data. When the amount of data stored in the TX
FIFO falls below the low watermark, flow control
is automatically de-asserted on the SPI3
interface to allow further data to be sent by the
switch fabric to the IXF1104 MAC.
Low watermark for TX FIFO Port 1. The
default value of 0x0D0 represents 208 8-byte
locations. This equates to 1664 bytes of data. A
unit entry in this register equates to 8 bytes of
data. When the amount of data stored in the TX
FIFO falls below the low watermark, flow control
is automatically de-asserted on the SPI3
interface to allow further data to be sent by the
switch fabric to the IXF1104 MAC.
Low watermark for TX FIFO Port 2. The
default value of 0x0D0 represents 208 8-byte
locations. This equates to 1664 bytes of data. A
unit entry in this register equates to 8 bytes of
data. When the amount of data stored in the TX
FIFO falls below the low watermark, flow control
is automatically de-asserted on the SPI3
interface to allow further data to be sent by the
switch fabric to the IXF1104 MAC.
Low watermark for TX FIFO Port 3. The
default value of 0x0D0 represents 208 8-byte
locations. This equates to 1664 bytes of data. A
unit entry in this register equates to 8 bytes of
data. When the amount of data stored in the TX
FIFO falls below the low watermark, flow control
is automatically de-asserted on the SPI3
interface to allow further data to be sent by the
switch fabric to the IXF1104 MAC.
Address
0x60C
0x60D
0x60A
0x60B
Type
R/W
R/W
R/W
R/W
1
0x000000D0
0x000000D0
0x000000D0
0x000000D0
Default
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