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參數(shù)資料
| 型號： | GT3200 |
| 廠商： | SMSC Corporation |
| 英文描述： | USB2.0 PJY IC |
| 中文描述： | USB2.0接口PJY集成電路 |
| 文件頁數(shù)： | 24/51頁 |
| 文件大?。?/td> | 1462K |
| 代理商： | GT3200 |
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USB2.0 PHY IC
Revision 1.3 (10-05-04)
19
SMSC GT3200, SMSC USB3250
DATASHEET
7.2
System Clocking
This block connects to either an external 12MHz crystal or an external clock source and generates a
480MHz multi-phase clock. The clock is used in the CRC block to over-sample the incoming received
data, resynchronize the transmit data, and is divided down to a 30MHz or 60MHz version (CLKOUT)
which acts as the system byte clock. The PLL block also outputs a clock valid signal to the other parts
of the transceiver when the clock signal is stable. All UTMI signals are synchronized to the CLKOUT
output. The behavior of the CLKOUT is as follows:
■
Produce the first CLKOUT transition no later than 5.6ms after negation of SUSPENDN. The
CLKOUT signal frequency error is less than 10% at this time.
■
The CLKOUT signal will fully meet the required accuracy of ±500ppm no later than 1.4ms after the
first transition of CLKOUT.
In HS mode there is one CLKOUT cycle per byte time. The frequency of CLKOUT does not change
when the Macrocell is switched between HS to FS modes. In FS mode (8-bit mode) there are 5 CLK60
cycles per FS bit time, typically 40 CLK60 cycles per FS byte time. If a received byte contains a stuffed
Figure 7.1 Bidirectional 16-bit interface
DATAOUT[7:0
]
TXVALI
D
DATA[7:0]
DATAOUT[1
5
:8]
DATA[15:8]
RXVALID
H
VALID
H
DATAIN[7:0]
DATAIN[15:8]
DATAOUT[7:0
]
MU
X
SELB
A
B
TXVALID
H
DATABUS16_
8
1=1
6
-bit mode, 0=8-bit mode
TXVALID
Transceiver
Core
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GT3200-ABZJ | USB2.0 PJY IC |
| GT3200-JD | Aluminum Electrolytic Radial Leaded General Purpose Capacitor; Capacitance: 33uF; Voltage: 16V; Case Size: 5x11 mm; Packaging: Bulk |
| GT3200-JN | USB2.0 PJY IC |
| GT3200-JV | USB2.0 PJY IC |
| GTF701-HS3 | 2-Line EMI-Filter with ESD -Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GT3200_06 | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PHY IC |
| GT3200-ABZJ | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PJY IC |
| GT3200-JD | 制造商:Rochester Electronics LLC 功能描述:GAIN TECHNOLOGY - Bulk |
| GT3200-JN | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PJY IC |
| GT3200-JV | 制造商:Microchip Technology 功能描述:PHY 1-CH 12Mbps/480Mbps |
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