SH7710 Datasheet, PDF (758/996 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 18 Ethernet Controller (EtherC)
Table 18.6 Relay Frame Process (When External CAM Logic is Used)
Frame
Relay Function Setting
Register bit
CAMSEN0 or
CAMSEN1 Pin
Assertion
CAMSEN0 or
CAMSEN1 Pin
Negation
Multicast frame
FW40/1 = 0
Relayed
Discarded
FW40/1 = 1
Discarded
Relayed
Frames to destinations other FW40/1 = 0
than this LSI
FW40/1 = 1
Relayed
Discarded
Discarded
Relayed
Note: CAM can be referenced only for multicast frames and frames to destinations other than this
LSI. The processing of frames to this LSI and broadcast frames conforms to the values of
the relay function setting register regardless of CAM reference.
RX-CLK
RX-DV
RXD3 to RXD0
CAMSEN*
CAMSEN signal valid range
1 2 3 7 8 9 10 11 12 13
Preamble
SFD Destination address
50 51 52 53
Assertion above 1 clock
Note: * Outside the valid range of the CAMSEN signal, always set the CAMSEN signal to low.
Figure 18.6 External CAM Signal Timing
Rev. 2.00 Dec. 07, 2005 Page 716 of 950
REJ09B0079-0200