BusWorks
®
900EN-S005 Ethernet Switch User’s Manual Ethernet I/O
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Acromag, Inc. Tel:248-624-1541 Fax:248-624-9234 Email:
http://www.acromag.com
39
REG
DESCRIPTION
DEF
107
6BH
MAC Address Register 3
FFH
7-0
MACA[23:16]
FFH
108
6CH
MAC Address Register 4
FFH
7-0
MACA[15:8]
FFH
109
6DH
MAC Address Register 5
FFH
7-0
MACA[7:0]
FFH
ADVANCED CONTROL REGISTERS 110-120 –
Use registers 110 & 111
to read or write data to the static MAC address table, VLAN table, dynamic
address table, or the MIB counters. For SPI Slave Mode only.
REG
DESCRIPTION
DEF
110
6EH
Indirect Access Control 0 (SPI Mode Only)
00H
Bit
Function
7-5
Reserved
000
4
Read-High/Write-Low:
1=Read cycle; 0=Write cycle.
0
3-2
Table Select (SPI Slave Mode Only):
00=Static MAC address table selected.
01=VLAN table selected.
10=Dynamic address table selected.
11=MIB counter selected.
00
1-0
Indirect Access High – Bits 9-8 of indirect address
00
111
6FH
Indirect Access Control 1 (SPI Mode Only)
00H
Bit
Function
7-0
Indirect Address Low: Bits 7-0 of indirect address.
Note:
A write to register 111 will actually trigger a
command. Read or write access will be decided by
bit 4 of register 110.
0
REG
DESCRIPTION
DEF
112
70H
Indirect Data Register 8
00H
Bit
Function
7-0
Indirect Data Bits 68-64 (Unused upper 3 bits 000)
00000
113
71H
Indirect Data Register 7
00H
7-0
Indirect Data Bits 63-56
0..0
114
72H
Indirect Data Register 6
00H
7-0
Indirect Data Bits 55-48
0..0
115
73H
Indirect Data Register 5
00H
7-0
Indirect Data Bits 47-40
0..0
116
74H
Indirect Data Register 4
00H
7-0
Indirect Data Bits 39-32
0..0
117
75H
Indirect Data Register 3
00H
7-0
Indirect Data Bits 31-24
0..0
118
76H
Indirect Data Register 2
00H
7-0
Indirect Data Bits 23-16
0..0
119
77H
Indirect Data Register 1
00H
7-0
Indirect Data Bits 15-8
0..0
120
78H
Indirect Data Register 0
00H
7-0
Indirect Data Bits 7-0
0..0
Register Map