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參數(shù)資料
| 型號： | BBT3420-SN |
| 廠商： | Intersil |
| 文件頁數(shù)： | 5/38頁 |
| 文件大?。?/td> | 0K |
| 描述： | TXRX QUAD MULTI-RATE 289-EBGA |
| 標(biāo)準(zhǔn)包裝： | 84 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 4/4 |
| 規(guī)程： | XAUI，XGMII，MDC/MDIO |
| 電源電壓： | 1.7 V ~ 1.9 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 289-BGA |
| 供應(yīng)商設(shè)備封裝： | 289-BGA（19x19） |
| 包裝： | 托盤 |
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13
3.14 MDIO Registers
In the following tables, the Clause 45 addresses are given
after the Clause 22 address in the table header, where the
registers coincide in structure, but the addresses differ.
Separate tables are given for registers and bits differently
constructed. The underlying register bits are the same, and
may be read or written indiscriminately in either format
(except for a few bits that are not accessible via the Clause
22 format).
TABLE 3-8. IEEE XGXS CONTROL 1 REGISTER
MII REGISTER 0, ADDRESSES = 00’h & 0000’h
BIT
NAME
SETTING
DEFAULT
R/W
DESCRIPTION
15
Reset
1 = reset
0’b
R/W SC
Self-clearing reset. Writing 1 to this bit will reset the
whole chip, including the MDIO registers.
0 = reset done
14
LOOP_EN
1 = enable
0’b
R/W
Enable serial loopback mode.
13
SPEEDSEL0
1 = 10Gbps
1’b
RO
Writes ignored
12
Reserved
11
LOPOWER
1 = Low Power
0’b
R/W
No Low Power Mode, ignored
10:7
Reserved
6
SPEEDSEL1
1 = 10Gbps
1’b
RO
Writes ignored
5:2
SPEEDSEL
0 = 10Gbps
0’h
RO
Writes ignored
1:0
Reserved
TABLE 3-9. IEEE XGXS STATUS 1 REGISTER (CLAUSE 22)
MII REGISTER 1, ADDRESS = 01’h
BIT
NAME
SETTING
DEFAULT
R/W
DESCRIPTION
15:14
Device present 10 = Device
present
10’b
RO
Indicates that a device is present at this device address
13
LOS_D
1 = Signal less
than threshold
0 = Signal
greater than
threshold
0’b
RO/LH
Loss Of Signal for RX Inputs of each of 4 channels; signal
less than LOS_CONTROL value (see Table 3-28 and/or
Table 3-33) (Note 1)
12
LOS_C
0’b
11
LOS_B
0’b
10
LOS_A
0’b
9:4
Reserved
00’h
RO
3:0
Internal
F’h
RO
Internal Function (ignore)
NOTE:
1. Please refer to section “3.7.2 Loss of Signal (LOS)” on page 6 for a more detailed description.
TABLE 3-10. IEEE XGXS STATUS 1 REGISTER (CLAUSE 45)
MII REGISTER 1, ADDRESS = 0001’h
BIT
NAME
SETTING
DEFAULT
R/W
DESCRIPTION
15:8
Reserved
00’h
RO
7
LOCAL_FLT
1 = Local Fault
0’b
RO
Derived from Register 0008’h
6:3
Reserved
2
RX_LINK
1 = XGXS Link up
1’b
RO LL
XAUI Receive Link Status
1
LoPwrAble
Low Power Ability
0’b
RO
Does not support Low Power
0
Reserved
BBT3420
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