HFIXF1110CC.B3-998844 Cortina Systems Inc, HFIXF1110CC.B3-998844 Datasheet - Page 59

• Manufacturer Part Number: HFIXF1110CC.B3-998844
• Description: IC ETHERNET MAC 10PORT 552-CBGA
• Manufacturer: Cortina Systems Inc

Specifications of HFIXF1110CC.B3-998844

• Controller Type: Ethernet Controller, MAC
• Interface: SPI-4.2
• Voltage - Supply: 1.8 V, 2.5 V
• Operating Temperature: 0°C ~ 70°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: 1008-1010

IXF1110 MAC
Datasheet
250210, Revision 11.0
13 April 2009
5.2.1.3
Figure 12
Cortina Systems
DIP4
Figure 12
are computed. A functional description of calculating the DIP-4 code is given as follows.
Assume that the stream of 16-bit data words are arranged as shown in
the left most column, time moving downward). (The first word received is at the top of the
figure; the last word is at the bottom of the figure.) The parity bits are generated by
summing diagonally (in the control word, the space occupied by the DIP-4 code (bits a, b, c,
d) is set to all 1s during encoding). The first 16-bit result is split into two bytes, which are
added to each other modulo-2 to produce an 8-bit result. The 8-bit result is then divided into
two 4-bit nibbles, which are added to each other modulo-2 to produce the final DIP-4 code.
The procedure described applies to either parity generation on the Rx path or to check
parity on the Tx path.
DIP-4 Calculation Boundaries
®
IXF1110 10-Port 1000 Mbps Ethernet Media Access Controller
Payload
shows the range over which the Diagonal Interleaved Parity (DIP-4) parity bits
Control
Control
DIP-4 Codewords
Control
Payload
5.2 System Packet Interface Level 4
Figure 13
Control
A9039-01
(MSB at
Page 59
Phase 2