SH7670 Datasheet, PDF (446/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 12 Ethernet Controller (EtherC)
12.3.18 Multicast Address Frame Counter Register (MAFCR)
MAFCR is a 32-bit counter that indicates the number of frames received with a specified multicast
address. When the value in this register reaches H'FFFFFFFF, the count is halted. The counter
value is cleared to 0 by a write to this register with any value.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
MAFC[31:16]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
MAFC[15:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit Bit Name
31 to 0 MAFC[31:0
Initial
Value
All 0
R/W Description
R/W Multicast Address Frame Count
These bits indicate the count of multicast frames
received.
Rev. 1.00 Nov. 14, 2007 Page 420 of 1262
REJ09B0437-0100