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參數(shù)資料
| 型號： | HDMP-1022 |
| 英文描述： | Audio Power Amplifier; Speaker Channels:Mono; Headphone Channels:Mono; Output Power, Po:2W; Load Impedance Min:8ohm; Supply Voltage Max:24V; Supply Voltage Min:6V |
| 中文描述： | 低成本千兆速率發(fā)送/接收芯片組配備TTL的I / O |
| 文件頁數(shù)： | 23/40頁 |
| 文件大?。?/td> | 321K |
| 代理商： | HDMP-1022 |
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Appendix I: Additional
Internal Architecture
Information
Line Code Description
The HDMP-1022/1024 line code
is Conditional Invert Master
Transition (CIMT), illustrated in
Figure 11. The CIMT line uses
three types of frames: data
frames, control frames, and fill
frames. Fill frames are internally
generated by the Tx chip for use
during link start up and when
there is no input from the user.
Each frame consists of a Data
Field (D-Field) followed by a
Coding Field (C-Field). The D-
Field can be either 16-bits or 20-
bits wide, depending on link
configuration. The C-Field has a
master transition which serves as
a fixed timing reference for the
receivers clock recovery circuit.
Users can send arbitrary data
carried by Data or Control
Frames. The dc balance of the
line code is automatically
enforced by the Tx. Fill frames
have a single rising edge at the
master transition which is used
for clock recovery and frame
synchronization at the receiver.
Detailed coding schemes are
described in the following
subsections. All the tables given
in this section show data bits in
the same configuration as a scope
display. In other words, the
leftmost bit in each table is the
first bit to be transmitted in time,
while the rightmost bit is the last
bit to be transmitted.
Data Frame Codes
When not in FLAGSEL mode, the
FLAG bit is not user controllable
and is alternately sent as 0 and 1
by the Tx chip during data frames
to provide enhanced error
detection. Control and Fill frames
do not cause toggling between
even and odd frames to occur (the
FLAG bit is not available during
control frames). The receiver
performs a differential detection
to make sure that every data
frame received is the opposite
pattern from the previous frame.
If a break in the strict alternation
is observed, a frame error is
flagged by asserting the Rx
ERROR output. This pattern
detection makes it impossible for
a static input data pattern to
generate an undetectable false
lock point in the transmitted data
stream. The detection also
reduces the probability that the
loop could lock onto random data
at a point away from the true
master transition for any
significant time before it would be
detected as a false lock. This
mode can detect all single-bit
errors in the C-field (non-data bit
fields) of the frame.
When the chip is in FLAGSEL
mode, the extra FLAG bit is freely
user definable as an extra data
bit. This provides a 17th bit in 16
bit mode, and a 21st bit in 20 bit
mode. The probability of
undetected false lock is higher,
but the users (e.g., SCI-FI) that
need the extra bit can detect false
lock at a higher level of the net-
work protocol with clock recovery
circuits, etc. If the higher level
protocols consistently receive
wrong data, they can initiate a
link restart by resetting the Rx
state machine.
Figure 11. HDMP-1022/1024 (Tx/Rx Pair) Line Code.
DATA FIELD
16/20 BITS
CODING FIELD
4 BITS
FILL
FRAME
SERIAL
DATA
FRAME K
FRAME K+1
MASTER
TRANSITION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HDMP-1024 | Low Cost Gigabit Rate Receive Chip Set with TTL I/Os(帶TTL輸入/輸出的低價(jià)格千兆位速率接收芯片) |
| HDMP-1032 | 1.4 GBd Transmitter Chip Set with CIMT Encoder/Decoder and Variable Data Rate(帶CIMT編碼器/譯碼器和變量數(shù)據(jù)速率的1.4 GBd 傳送器) |
| HDMP-1034 | 1.4 GBd Receiver Chip Set with CIMT Encoder/Decoder and Variable Data Rate(帶CIMT編碼器/譯碼器和變量數(shù)據(jù)速率的1.4 GBd 接收器) |
| HDMP-1512 | Fibre Channel Transmitter Chipset(光纖通道傳送芯片) |
| HDMP-1514 | Fibre Channel Receiver Chipset(光纖通道接收芯片) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HDMP-1024 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Low Cost Gigabit Rate Transmit/Receive Chip Set with TTL I/Os |
| HDMP-1032 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:1.4 GBd Transmitter/Receiver Chip Set with CIMT Encoder/Decoder and Variable Data Rate |
| HDMP-1032A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1.4 GBd Transmitter Chip with CIMT Encoder/Decoder and Variable Data Rate |
| HDMP-1034 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:1.4 GBd Transmitter/Receiver Chip Set with CIMT Encoder/Decoder and Variable Data Rate |
| HDMP-1034A | 制造商:HP 制造商全稱:Agilent(Hewlett-Packard) 功能描述:Transmitter/Receiver Chip Set |
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