參數(shù)資料
型號： AM79C901AVIT
廠商： Advanced Micro Devices, Inc.
英文描述： HomePHY Single-Chip 1/10 Mbps Home Networking PHY
中文描述： HomePHY單芯片的1 / 10 Mbps的家庭網(wǎng)絡(luò)物理層
文件頁數(shù)： 59/90頁
文件大?。?/td> 714K
代理商： AM79C901AVIT
Am79C901A
59
P R E L I M I N A R Y
TBR2 and TBR3: 10BASE-T PHY Identifier Register (Registers 2 and 3)
Registers 2 and 3 contain a unique PHY identifier, con-
sisting of 22 bits of the organizationally unique IEEE
identifier, a 6-bit manufacturer
’
s model number, and a
4-bit manufacturer
’
s revision number. The most signifi-
cant bit of the PHY identifier is bit 15 of register 2; the
least significant bit of the PHY identifier is bit 0 of reg-
ister 3. Register 2, bit 15, corresponds to bit 3 of the
IEEE identifier and register 2, bit 0, corresponds to bit
18 of the IEEE identifier. Register 3, bit 15, corre-
sponds to bit 19 of the IEEE identifier and register 3, bit
10, corresponds to bit 24 of the IEEE identifier. Regis-
ter 3, bits 9-4, contain the manufacturer
’
s model num-
ber and bits 3-0 contain the manufacturer
’
s revision
number. These registers are shown in Table 43 and
Table 44.
Table 43.
TBR2: 10BASE-T
PHY Identifier Register (Register 2)
Table 44.
TBR3: 10BASE-T PHY Identifier Register (Register 3)
Bits
Name
Description
Read/
Write
Default Value (hex)
15:0
PHY_ID[31-16]
IEEE Address (bits 3-18); Register 2, bit
15 is MSB of PHY Identifier
R
0000
Bits
Name
Description
Read/
Write
Default Value (hex)
15:10
PHY_ID[15-10]
IEEE Address (bits 19-24)
R
1A
9:4
PHY_ID[9-4]
Manufacturer
’
s Model Number (bits 5-0)
R
37
3:0
PHY_ID[3-0]
Revision Number (bits 3-0); Register 3, bit
0, is LSB of PHY Identifier
R
01
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