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參數(shù)資料
| 型號(hào)： | S2076 |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | Quad Fibre Channel Transceiver(四光纖通道收發(fā)器) |
| 中文描述： | 四光纖通道收發(fā)器（四光纖通道收發(fā)器） |
| 文件頁(yè)數(shù)： | 9/28頁(yè) |
| 文件大?。?/td> | 300K |
| 代理商： | S2076 |
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S2076
QUAD FIBRE CHANNEL TRANSCEIVER
October 13, 2000 / Revision B
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Table 4. Output Clock Modes
Parallel Output Clock Rate
Two output clock modes are supported. When
CMODE is HIGH, a complementary TTL clock at the
data rate is provided on the RBC1/0x outputs. Data
should be clocked on the rising edge of RBC1x.
When CMODE is LOW, the S2076 outputs a
complementary TTL clock at 1/2 the data rate in
compliance with the Fibre Channel 10 Bit Interface
Specification. Data should be latched on the rising
edge of RBC1x and the rising edge of RBC0x.
If consecutive K28.5 characters are received, the
S2076 RBC1/0x clock operates without glitches or
loss of cycles.
OTHER OPERATING MODES
Loopback Mode
When loopback mode is enabled, the serial data
from the transmitter is provided to the serial input of
the receiver. Loopback mode can be simultaneously
enabled for all four channels using the loopback-en-
able input, LPEN.
The loopback mode provides the ability to perform
system diagnostics and off-line testing of the inter-
face to guarantee the integrity of the serial channel
before enabling the transmission medium. Loopback
is enabled when LPEN = 1.
Note that the high speed outputs are disabled during
loopback operation.
Test Modes
The RESET pin is used to initialize the Transmit
FIFOs and must be asserted (LOW) prior to entering
the normal operational state (see section Transmit
FIFO Initialization). Note that Reset does not disable
the TCLKO output unless the TBCB input is HIGH.
Operating Frequency Rate
The S2076 is designed to operate at the Fibre Chan-
nel rate of 1.062 GHz.
output
disabled
CRU
CSU
Figure 7. S2076 Diagnostic Loopback Operation
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