MC9S12NE64CPVE Datasheet, PDF (336/554 Pages) Freescale Semiconductor, Inc – MC9S12NE64 Device Overview

Chapter 11 Ethernet Media Access Controller (EMACV1)
Receive
Address
Recognition
True
PROM = 1
?
False
False
BCREJ = 1
?
True
True _Broadcast
Address
?
False
RFCE = 1
and
Full Duplex
?
False
True
False
Pause or
Exact Address
?
Exact _True
True
Match
?
False
False
Group Bit = 1
?
True
False
CONMC = 1
?
True
Hash Search
Group Table
Pass to
Type/Length
Algorithm
Reject
Frame
False _{Match True}
?
Pass to
Type/Length
Algorithm
Figure 11-24. Receive Address Recognition Algorithm
11.4.2.2 Type/Length Recognition
The EMAC executes filtering by using the type/length field of a receive frame and rejects a frame that does
not meet acceptance criteria. See Figure 11-25 for the type/length recognition algorithm.
MC9S12NE64 Data Sheet, Rev. 1.1
336
Freescale Semiconductor