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參數(shù)資料
| 型號： | VSC7216UC-01 |
| 廠商： | VITESSE SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Multi-Gigabit Interconnect Chip |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA256 |
| 封裝： | 27 X 27 MM, 1.27 MM PITCH, BGA-256 |
| 文件頁數(shù)： | 19/38頁 |
| 文件大?。?/td> | 561K |
| 代理商： | VSC7216UC-01 |
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Preliminary Datasheet
VSC7216-01
Multi-Gigabit Interconnect Chip
VITESSE
G52352-0, Rev 3.2
05/05/01
Page 19
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Compatibility with VSC7214 and VSC7211
Care has been taken in the functional definition of the VSC7216-01 to ensure that it is compatible with the
VSC7211 and VSC7214 at the serial link level, and that the transmitter and receiver low-speed interfaces have
compatible modes of operation. It is strongly recommended that the VSC7216-01 not be connected in any way
through the WSO and/or WSI pins to a VSC7211 or VSC7214.
Serial Link Compatibility
The VSC7216-01 uses the same Fibre Channel 8b/10b encoding scheme and the same Word Sync Sequence
used in the VSC7211 and VSC7214. The only difference in serial link operation is that the VSC7211 and
VSC7214 require four consecutive identically-aligned
“
Comma
”
patterns to set the character framing boundary,
while the VSC7216-01 requires a single
“
Comma.
”
This means that from the LOSS_OF_SYNC state, the
VSC7216-01 will make an earlier transition to the RESYNC state (one
“
Comma
”
instead of four) as shown in
Figure 9. Once out of the LOSS_OF_SYNC state, there is no difference in receiver behavior in the absence of
data link errors. When transmitting in 32-bit mode from a VSC7216-01 to a VSC7211 or VSC7214, use
TMODE(2:0)=000 or =1X0 (common transmit interface timing source) to minimize transmitter inter-channel
skew.
Parallel Interface Compatibility
In general, the VSC7216-01 low-speed parallel interfaces can be configured so that there are input and
output signals that are compatible with their VSC7211 and VSC7214 counterparts. On the transmit interface,
the signals Tn(7:0) and C/Dn behave identically on the VSC7216-01 as long as the input timing is referenced to
REFCLK (e.g., TMODE(2:0)=000). On the receive interface, the signals Rn(7:0), ERRn, KCHn and IDLEn
behave identically on the VSC7216-01 as long as the four receive channels present output data centered around
REFCLK (RMODE(1:0)=00) or timed to RCLKA/RCLKNA (RMODE(1:0)=10). When RMODE(1:0)=10, the
VSC7216-01 RCLKn/RCLKNn outputs provide four copies of RCLKA/RCLKNA, which are equivalent to the
VSC7211 and VSC7214 RCLK/RCLKN outputs.
The VSC7216-01 KCHAR input is no longer a synchronous input timed to REFCLK as on the VSC7211
and VSC7214. It is a static input used to define the control character encoding mode when C/Dn=1, as shown in
Table 3. The VSC7216-01 also has a separate WSENn input per channel instead of a common WSYNC input as
on the VSC7211 and VSC7214.
Operational Mode Compatibility
The VSC7211 and VSC7214 specifications define eight operating modes based on the binary combinations
of the RCLKEN, FLOCK and INDEP inputs. Note that these mode inputs control VSC7211 and VSC7214
receiver operation only, and have no effect on transmitter operation. For each of these modes, the equivalent
VSC7216-01 receiver configuration is presented.
VSC7214 MODE 0: RCLKEN=LOW, FLOCK=LOW, INDEP=LOW
Receiver Rn(7:0), ERRn, KCHn and IDLEn outputs are synchronous to REFCLK, IDLE insertion/deletion
is enabled, and the receive channels are word-aligned. The VSC7216-01 should be configured with
RMODE(1:0)=00, FLOCK=0, and WSI connected to its own WSO or to the WSO of another VSC7216-01 if
multiple devices are to be used in parallel. The
WSI
connection allows IDLE insertion/deletion to occur in
parallel across all word-aligned channels.
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| VSC7216UC-06 | 功能描述:IC TXRX BACKPLANE QUAD 256-BGA RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設(shè)備封裝:16-PDIP 包裝:管件 |
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