24
ICS1890
PHY Identifier Register (register 3
[0x03]
)
PHY Identifier Register (register 3)
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.
See register 2 for OUI formatting information.
Organizationally Unique Identifier bits 19-24 (bits
15-10)
This field contains the upper 6 bits of the IEEE OUI. Bit 19 of
the OUI maps to bit 15 of the register.
Manufacturers Model Number bits 5-0 (bits 9-4)
Model
Part
1
ICS1889
2
ICS1890
Revision Number bits 3-0 (bits 3-0)
The revision number will be incremented each time the silicon
is significantly revised. Currently the device is at revision 2.
Revision
Description
0
ICS Internal Release
1
1st Alpha Customer Samples
2
1st General Release
3
1890 J Release and above
Bit
Definition
When bit=0
When bit=1
Access
Default
Hex
15
OUI bit 19 | s
CW
1
F
14
OUI bit 20 | t
CW
1
13
OUI bit 21 | u
CW
1
12
OUI bit 22 | v
CW
1
11
OUI bit 23 | w
CW
0
4
10
OUI bit 24 | x
CW
1
9
Manufacturer’s Model Number bit 5
CW
0
8
Manufacturer’s Model Number bit 4
CW
0
7
Manufacturer’s Model Number bit 3
CW
0
2
6
Manufacturer’s Model Number bit 2
CW
0
5
Manufacturer’s Model Number bit 1
CW
1
4
Manufacturer’s Model Number bit 0
CW
0
3
Revision Number bit 3
CW
0
3
2
Revision Number bit 2
CW
0
1
Revision Number bit 1
CW
1
0
Revision Number bit 0
CW
1
Summary of Contents for PHYceiver ICS1890
Page 49: ...49 ICS1890 Pin Configuration...