23
ICS1890
PHY Identifier Register (register 2
[0x02]
)
PHY Identifier Register (register 2)
Register 2 and Register 3 contain the 24-bit Organizationally
Unique Identifier (OUI), Manufacturers Model Number and
Revision Number. Integrated Circuit Systems OUI is used as
the default for registers 2 and 3.
These two registers can always be read and may be written by
setting the Command Override bit in the Configuration register
(16:15) and then performing a write operation. At power-up
and reset they are set to Integrated Circuit Systems OUI. By
allowing these registers to be written, a systems vendor may
substitute their own OUI.
Organizationally Unique Identifier bits 3-18 (bits
15-0)
This field contains the lowest 16 bits of the IEEE OUI excluding
OUI maps to bit 15 of the register.
OUI Formatting Information
The ICS OUI is shown
below with information on mapping the OUI value into registers
2 and 3.
Octet Format:
00
A0
BE
|
|
third octet
|
second octet
first octet
Binary Format:
0
0
0
A
E
B
0000
0000
0000
0101
0111
1101
|
|
|
|
|
|
lsb
msb
lsb
msb
lsb
msb
(I/G)
IEEE Standard 802 Lettered Format
0000
0000
0000
0101
0111
1101
abcd
efgh
ijkl
mnop
qrst
uvwx
Bit
Definition
When bit=0
When bit=1
Access
Default
Hex
15
OUI bit 3 | c
CW
0
0
14
OUI bit 4 | d
CW
0
13
OUI bit 5 | e
CW
0
12
OUI bit 6 | f
CW
0
11
OUI bit 7 | g
CW
0
0
10
OUI bit 8 | h
CW
0
9
OUI bit 9 | I
CW
0
8
OUI bit 10 | j
CW
0
7
OUI bit 11 | k
CW
0
1
6
OUI bit 12 | l
CW
0
5
OUI bit 13 | m
CW
0
4
OUI bit 14 | n
CW
1
3
OUI bit 15 | o
CW
0
5
2
OUI bit 16 | p
CW
1
1
OUI bit 17 | q
CW
0
0
OUI bit 18 | r
CW
1
Summary of Contents for PHYceiver ICS1890
Page 49: ...49 ICS1890 Pin Configuration...