参数资料
型号: MC92603VF
厂商: Freescale Semiconductor
文件页数: 55/126页
文件大小: 0K
描述: IC TXRX ETH QUAD GIG 256-MAPBGA
标准包装: 1
类型: 收发器
驱动器/接收器数: 4/4
规程: 千兆位以太网
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 256-LBGA
供应商设备封装: 256-MAPBGA
包装: 托盘
Transmitter
MC92603 Quad Gigabit Ethernet Transceiver Reference Manual, Rev. 1
2-12
Freescale Semiconductor
2.6
Transmitter Redundant Link Operation
The MC92603 is configured as a dual channel SerDes, with redundant link input and outputs, if the enable
redundancy signal, ENAB_RED, is asserted high. Only the data interface to channels A and B will accept
data to be transmitted. This data will be transmitted over the appropriate link as specified by the
BROADCAST and XCVR_x_RSEL inputs as shown in Table 2-9.
NOTE
When operating in the redundancy mode, the transmitter channels C and D
input signals (XMIT_C_--- and XMIT_D_---), should be terminated low.
XCVR_A_RSEL, and XCVR_B_RSEL selects the primary or secondary link I/Os for channels A and B,
respectively. The BROADCAST control signal enables both channel A and B link outputs to transmit data
at their data interface, while enabling the receiver links to receive serial data defined by the
XCVR_x_RSEL control signal. See Section 3.3.6, “Receiver Redundant Link Operation,for more on
receiver redundancy.
.
Table 2-9. Transmit Channel A Redundant Link Operation
ENAB_RED
BROADCAST
XCVR_A_RSEL
Action
0
Don’t care
Data transmitted over XLINK_A_P/XLINK_A_N.
1
0
Data transmitted over XLINK_A_P/XLINK_A_N.
1
0
1
Data transmitted over XLINK_C_P/XLINK_C_N.
1
Don’t care
Data transmitted over XLINK_A_P/XLINK_A_N and
XLINK_C_P / XLINK_C_N.
Table 2-10. Transmit Channel B Redundant Link Operation
ENAB_RED
BROADCAST
XCVR_B_RSEL
Action
0
Don’t care
Data transmitted over XLINK_B_P/XLINK_B_N.
1
0
Data transmitted over XLINK_B_P/XLINK_B_N.
1
0
1
Data transmitted over XLINK_D_P/XLINK_D_N.
1
Don’t care
Data transmitted over XLINK_B_P/XLINK_B_N and
XLINK_D_P/XLINK_D_N.
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