88E1111-XX-BAB-C000 MARVELL [Marvell Technology Group Ltd.], 88E1111-XX-BAB-C000 Datasheet - Page 20

• Manufacturer Part Number: 88E1111-XX-BAB-C000
• Description: Integrated 10/100/1000 Ultra Gigabit Ethernet Transceiver
• Manufacturer: MARVELL [Marvell Technology Group Ltd.]

Table 7:
Doc. No. MV-S105540-00, Rev. --
Page 20
117-T FBGA
Pi n #
A3
A4
A5
A6
A7
A8
B3
1.25 GHz Serial High Speed Interface
96 -BCC
Pin #
82
81
79
80
77
75
91
88E1111 Product Brief
Integrated 10/100/1000 Ultra Gigabit Ethernet Transceiver
128 -PQF P
P i n #
113
112
110
109
107
105
125
Document Classification: Proprietary Information
P i n N a m e
S_IN+
S_IN-
S_CLK+/SD+
S_CLK-/SD-
S_OUT+
S_OUT-
RXD[3]
P i n
Ty pe
I
I
O, Z
O, Z
Des cription
1.25 GHz input - Positive and Negative.
When this interface is used as a MAC inter-
face, the MAC transmitter’s positive output
connects to the S_IN+. The MAC transmit-
ter’s negative output connects to the S_IN-.
When this interface is used as a fiber inter-
face, the fiber-optic transceiver’s positive
output connects to the S_IN+. The fiber-optic
transceiver’s negative output connects to the
S_IN-.
Input impedance on the S_IN± pins may be
programmed for 50 ohm or 75 ohm imped-
ance by setting register 26.6. The input
impedance default setting is determined by
the 75/50 OHM configuration pin.
Signal Detect input.
For Serial Interface modes the S_CLK± pins
become Signal Detect± (SD±) inputs.
1.25 GHz output − Positive and Negative.
When this interface is used as a MAC inter-
face, S_OUT+ connects to the MAC
receiver’s positive input. S_OUT- connects
to the MAC receiver’s negative input.
When this interface is used as a fiber inter-
face, S_OUT+ connects to the fiber-optic
transceiver’s positive input. S_OUT- con-
nects to the fiber-optic transceiver’s negative
input.
Output impedance on the S_OUT± pins may
be programmed for 50 ohm or 75 ohm
impedance by setting register 26.5. Output
amplitude can be adjusted via register
26.2:0. The output impedance default setting
is determined by the 75/50 OHM configura-
tion pin.
Serial MAC interface Copper Link Status[1]
connection.
1 = Copper link up
0 = Copper link down
Copyright © 2009 Marvell
March 4, 2009, Advance