參數(shù)資料
型號: HDMP-1014
英文描述: Bipolar Transistor; Collector Emitter Voltage, Vceo:400V; Transistor Polarity:N Channel; Power Dissipation:250W; C-E Breakdown Voltage:400V; DC Current Gain Min (hfe):10; Collector Current:50A; Package/Case:TO-3
中文描述: 4Low成本千兆速率發(fā)送/接收芯片組
文件頁數(shù): 32/42頁
文件大?。?/td> 321K
代理商: HDMP-1014
604
SEND FF0
DISABLE DATA TRANSMISSION
DISABLE DATA RECEPTION
FREQUENCY DETECTOR ON
0
DATA
ERROR
RESET
SEND FF1
DISABLE DATA TRANSMISSION
ENABLE DATA RECEPTION
FREQUENCY DETECTOR OFF
1
FF0
SEND FF0
ENABLE DATA TRANSMISSION
ENABLE DATA RECEPTION
FREQUENCY DETECTOR OFF
2
DATA
FF1
FF1
FF0
ERROR
RESET
DATA
FF1
FF0
ERROR
RESET
Figure 15. HDMP-1014 (Rx) State Machine State Diagram.
phase detection mode. Parallel
data can be sent by the local Tx,
and at the same time, received by
the local Rx.
The Rx chip has the state machine
logic built in. The SMC has two
status outputs, STAT0 and STAT1,
that control the various features
of the two chips depending on the
current state. The TX inputs that
need to be controlled are FF and
ED. The RX inputs that need to be
controlled are FDIS and ACTIVE.
To control the chips as shown in
the state diagram of Figure 15,
the following interchip
connections must be made
(Figure 16):
When the local port is in State 0,
it is in the reset state, where both
local Tx and Rx parallel interfaces
are disabled. The local Tx
transmits FF0 continuously, and
the local Rx PLL is in the
frequency detection mode. When
the local Rx is phase-locked to the
remote Tx, it transitions to State
1. The local Tx transmits FF1 to
acknowledge the phase-locked
condition (its parallel input is still
disabled). The local Rx PLL is in
the phase detection mode and its
parallel output is enabled. When
in State 2, the two-way
synchronization between the local
port and the remote port is
established. Both local Tx and Rx
parallel interfaces are enabled,
and the local Rx PLL is in the
Tx FF is driven by STAT1
Tx ED is driven by STAT0
Rx FDIS is driven by STAT1
Rx ACTIVE is driven by STAT1
TX RST and RX SMCRST0 are
driven by a power-on, or user,
reset circuit.
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