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參數(shù)資料
| 型號： | CYP15G0101 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Single-channel HOTLink Transceiver |
| 中文描述： | 單通道的HOTLink收發(fā)器 |
| 文件頁數(shù)： | 19/78頁 |
| 文件大?。?/td> | 1555K |
| 代理商： | CYP15G0101 |
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CYP15G04K100V1-MGC
CYP15G04K200V2-MGC
PRELIMINARY
Document #: 38-02044 Rev **
Page 19 of 78
try or configuration into these test modes will not damage the
device.
TX Mode 3
—
Atomic Word Sync and Control of Special Codes
When configured in TX Mode 3, TXCTx[1:0] data control in-
puts are captured. These bits combine to control the interpre-
tation of the TXDx[7:0] bits and the characters generated by
them. These bits are interpreted as listed in
Table 11
.
Word Sync Sequence
When TXCTx[1:0] = 11, a 16-character sequence of K28.5
characters, known as a Word Sync Sequence, is generated on
the associated channel. This sequence of K28.5 characters
may start with either a positive or negative disparity K28.5 (as
determined by the current running disparity and the 8B/10B
coding rules). The disparity of the second and third K28.5
characters in this sequence are reversed from what normal
8B/10B coding rules would generate. The remaining K28.5
characters in the sequence follow all 8B/10B coding rules. The
disparity of the generated K28.5 characters in this sequence
would follow a pattern of either ++
––
+
–
+
–
+
–
+
–
+
–
+
–
or
––
++
–
+
–
+
–
+
–
+
–
+
–
+.
When TXMODE[1] = M (open, TX modes 3, 4, and 5), the
generation of this character sequence is an atomic (non-inter-
ruptible) operation. Once it has been successfully started, it
cannot be stopped until all 16 characters have been generat-
ed. The content of the associated input register(s) is ignored
for the duration of this 16-character sequence. At the end of
this sequence, if the TXCTx[1:0] = 11 condition is sampled
again, the sequence restarts and remains uninterruptible for
the following 15 character clocks.
When TXMODE[1] = H (TX modes 6, 7, and 8), the generation
of the Word Sync Sequence becomes an interruptible opera-
tion. In TX Mode 6, this sequence is started as soon as the
TXCTx[1:0] = 11 condition is detected on a channel. In order
for the sequence to continue on that channel, the TXCTx[1:0]
inputs must be sampled as 00 for the remaining 15 characters
of the sequence.
If at any time a sample period exists where TXCTx[1:0]
≠
00,
the Word Sync Sequence is terminated, and a character rep-
resenting the associated data and control bits is generated by
the Encoder. This resets the Word Sync Sequence state ma-
chine such that it will start at the beginning of the sequence at
the next occurrence of TXCTx[1:0] = 11.
When TXCKSEL = L, the input registers for all four transmit
channels are clocked by REFCLK
[36]
. When TXCKSEL = H,
the input registers for all four transmit channels are clocked
with TXCLKA
↑
.
NOTE
: When operated in any configuration where receive
channels are bonded together, TXCKSEL must be either
LOW or HIGH (not MID) to ensure that associated charac-
ters are transmitted in the same character cycle.
TX Mode 4
—
Atomic Word Sync and Control of
Word Sync Sequence Generation
When configured in TX Mode 4, TXCTx[1:0] data control in-
puts are captured. These bits combine to control the interpre-
tation of the TXDx[7:0] bits and the characters generated by
them. These bits are interpreted as listed in
Table 12
.
TX Mode 5
—
Atomic Word Sync
In addition to the standard character encodings, both with and
without atomic Word Sync Sequence generation, two addition-
al encoding mappings are controlled by the Channel Bonding
selection made through the RXMODE[1:0] inputs.
For non-bonded operation, the TXCTx[1:0] inputs for each
channel control the characters generated by that channel. The
specific characters generated by these bits are listed in
Table
13
.
TX Mode 5 also has the capability of generating an Atomic
Word Sync Sequence. For the sequence to be started, the
TXCTx[1:0] inputs must both be sampled HIGH. With the ex-
ception of the combination of control bits used to initiate the
sequence, the generation and operation of this Word Sync Se-
quence is the same as that documented for TX Mode 3.
Two additional encoding maps are provided for use when re-
ceive channel bonding is enabled. When dual-channel bond-
ing is enabled (RXMODE[1] = M), the PSI transceiver block is
configured such that channels A and B are bonded together to
form a two-character-wide path, and channels C and D are
bonded together to form a second two-character-wide path.
When operated in this two-channel bonded mode, the
TXCTA[0] and TXCTB[0] inputs control the interpretation of the
data on both the A and B channels, while the TXCTC[0] and
TXCTD[0] inputs control the interpretation of the data on both
the C and D channels. The characters on each half of these
bonded channels are controlled by the associated TXCTx[1]
bit. The specific characters generated by these control bit com-
binations are listed in
Table 14
.
Note especially that any time
TXCTB[0] is sampled HIGH, both channels A and B start gen-
erating an Atomic Word Sync Sequence, regardless of the
Table 11. TX Modes 3 and 6 Encoding
T
X
0
1
T
0
1
1
Characters Generated
Encoded data character
K28.5 fill character
16-character Word Sync Sequence
Table 12. TX Modes 4 and 7 Encoding
T
T
0
1
1
Characters Generated
X
0
1
Encoded data character
K28.5 fill character
Special character code
Table 13. TX Modes 5 and 8 Encoding, Non-Bonded
T
T
0
1
0
1
Characters Generated
0
0
1
1
Encoded data character
K28.5 fill character
Special character code
16-character Word Sync Sequence
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| CYP15G0101DXB | Single-channel HOTLink Transceiver |
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| CYP15G0101DXB-BBI | Single-channel HOTLink Transceiver |
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相關(guān)代理商/技術(shù)參數(shù) |
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| CYP15G0101DXA | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single Channel HOTLink II Transceiver |
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| CYP15G0101DXA-BBI | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single Channel HOTLink II Transceiver |
| CYP15G0101DXB | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single-channel HOTLink II⑩ Transceiver |
| CYP15G0101DXB_11 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single-channel HOTLink II Transceiver Compliant to multiple standards |
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