HPIXF1104BE.B1-994579 Cortina Systems Inc, HPIXF1104BE.B1-994579 Datasheet - Page 194

• 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 131
Cortina Systems
TX FIFO High Watermark Ports 0 - 3 ($0x600 – 0x603) (Sheet 2 of 2)
®
Name
TX FIFO High
Watermark Port 1
TX FIFO High
Watermark Port 2
TX FIFO High
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
High watermark for TX FIFO Port 1. The
default value of 0x3E0 represents 992 8-byte
locations. This equates to 7936 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 exceeds the high watermark, flow control
is automatically initiated on the SPI3 interface to
request that the switch fabric stops data
transfers to avoid an overflow condition.
High watermark for TX FIFO Port 2. The
default value of 0x3E0 represents 992 8-byte
locations. This equates to 7936 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 exceeds the high watermark, flow control
is automatically initiated on the SPI3 interface to
request that the switch fabric stops data
transfers to avoid an overflow condition.
High watermark for TX FIFO Port 3. The
default value of 0x3E0 represents 992 8-byte
locations. This equates to 7936 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 exceeds the high watermark, flow control
is automatically initiated on the SPI3 interface to
request that the switch fabric stops data
transfers to avoid an overflow condition.
Address
0x601
0x602
0x603
Type
R/W
R/W
R/W
1
0x000003E0
0x000003E0
0x000003E0
Default
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