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參數(shù)資料
| 型號： | CYP15G0401DXB-BGI |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | Quad HOTLink II Transceiver |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA256 |
| 封裝： | BGA-256 |
| 文件頁數(shù)： | 17/48頁 |
| 文件大?。?/td> | 1115K |
| 代理商： | CYP15G0401DXB-BGI |
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CYP15G0401DXA
PRELIMINARY
Document #: 38-02002 Rev. *B
Page 17 of 48
and dynamic control signals. The transmit modes are listed in
Table 3
.
The encoded modes (TX Modes 3 through 8) support multiple
encoding tables. These encoding tables vary by the specific
combinations of SCSEL, TXCTx[1], and TXCTx[0] that are
used to control the generation of data and control characters.
These multiple encoding forms allow maximum flexibility in in-
terfacing to legacy applications, while also supporting numer-
ous extensions in capabilities.
TX Mode 0—Encoder Bypass
When the Encoder is bypassed, the character captured in the
TXDx[7:0] and TXCTx[1:0] inputs is passed directly to the
transmit shifter without modification. If parity checking is en-
abled (PARCTL
≠
LOW) and a parity error is detected, the 10-
bit character is replaced with the 1001111000 pattern (+C0.7
character) regardless of the running disparity of the previous
character.
With the encoder bypassed, the TXCTx[1:0] inputs are consid-
ered part of the data character and do not perform a control
function that would otherwise modify the interpretation of the
TXDx[7:0] bits. The bit usage and mapping of these control bits
when the Encoder is bypassed is shown in
Table 4
.
In this mode the SCSEL input is not interpreted. All clocking
modes interpret the data the same, with no internal linking
between channels.
TX Modes 1 and 2—Factory Test Modes
These modes enable specific factory test configurations. They
are not considered normal operating modes of the device. En-
try or configuration into these test modes will not damage the
device.
TX Mode 3—Atomic Word Sync and SCSEL Control of Special
Codes
When configured in TX Mode 3, the SCSEL input is captured
along with the associated TXCTx[1:0] data control inputs.
These bits combine to control the interpretation of the
TXDx[7:0] bits and the characters generated by them. These
bits are interpreted as listed in
Table 5
.
When TXCKSEL = M, all transmit channels capture data into
their input registers using independent TXCLKx clocks. The
SCSEL input is sampled only by TXCLKA
↑
. When the charac-
ter (accepted in the Channel-A Input Register) has passed
through the Phase-Align Buffer and any selected parity valida-
tion, the level captured on SCSEL is passed to the Encoder of
the remaining channels during this same cycle.
To avoid the possible ambiguities that may arise due to the
uncontrolled arrival of SCSEL relative to the characters in the
alternate channels, SCSEL is often used as a static configura-
tion input.
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-
Table 3. Transmit Operating Modes
TX Mode
Operating Mode
M
N
T
[
Word Sync
Sequence
Support
None
None
None
Atomic
SCSEL
Control
None
None
None
Special
Character
Word Sync
None
Special
Character
Word Sync
None
TXCTx Function
Encoder Bypass
Reserved for test
Reserved for test
Encoder Control
0
1
2
3
LL
LM
LH
ML
4
5
6
MM
MH
HL
Atomic
Atomic
Interruptible
Encoder Control
Encoder Control
Encoder Control
7
8
HM
HH
Interruptible
Interruptible
Encoder Control
Encoder Control
Note:
6.
LSB is shifted out first.
Table 4. Encoder Bypass Mode (TXMODE[1:0] = LL)
Signal Name
TXDx[0]
(LSB)
TXDx[1]
TXDx[2]
TXDx[3]
TXDx[4]
TXDx[5]
TXDx[6]
TXDx[7]
TXCTx[0]
TXCTx[1]
(MSB)
Bus Weight
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
10B Name
a
[6]
b
c
d
e
i
f
g
h
j
Table 5. TX Modes 3 and 6 Encoding
S
T
T
0
1
1
1
Characters Generated
Encoded data character
K28.5 fill character
Special character code
16-character Word Sync Sequence
X
0
1
X
X
0
0
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYP15G0401DXB-BGXC | 功能描述:電信線路管理 IC Dual Channel XCVR 1.5Gbps Bckplane COM RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| CYP15G0401DXB-BGXCKG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Cypress Semiconductor 功能描述: |
| CYP15G0401DXBBGXI | 制造商:Cypress Semiconductor 功能描述: |
| CYP15G0401DXB-BGXI | 功能描述:電信線路管理 IC Quad HOTLink II XCVR Ch 1.5Gbps Backplane RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| CYP15G0401DX-BGC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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