參數(shù)資料
型號(hào)： GT3200-JV
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 網(wǎng)絡(luò)接口
英文描述： USB2.0 PJY IC
中文描述： DATACOM, INTERFACE CIRCUIT, PQFP64
封裝： 7 X 7 MM, 1.40 MM HEIGHT, GREEN, TQFP-64
文件頁(yè)數(shù)： 33/51頁(yè)
文件大?。?/td> 1462K
代理商： GT3200-JV
USB2.0 PHY IC
SMSC GT3200, SMSC USB3250
28
Revision 1.3 (10-05-04)
DATASHEET
8.2
OPMODES
The OPMODE[1:0] pins allow control of the operating modes.
The OPMODE[1:0] signals are normally changed only when the transmitter and the receiver are
quiescent, i.e. when entering a test mode or for a device initiated resume.
When using OPMODE[1:0] = 10 (state 2), OPMODES are set, and then 5 60MHz clocks later,
TXVALID is asserted. In this case, the SYNC and EOP patterns are not transmitted.
The only exception to this is when OPMODE[1:0] is set to state 2 while TXVALID has been asserted
(the transceiver is transmitting a packet), in order to flag a transmission error. In this case, the PHY
has already transmitted the SYNC pattern so upon negation of TXVALID the EOP must also be
transmitted to properly terminate the packet. Changing the OPMODE[1:0] signals under all other
conditions, while the transceiver is transmitting or receiving data will generate undefined results.
Under no circumstances should the device controller change OPMODE while the DP/DM lines are still
transmitting or unpredictable changes on DP/DM are likely to occur. The same applies for
TERMSELECT and XCVRSELECT.
8.3
Test Mode Support
8.4
SE0 Handling
For FS operation, IDLE is a J state on the bus. SE0 is used as part of the EOP or to indicate reset.
When asserted in an EOP, SE0 is never asserted for more than 2 bit times. The assertion of SE0 for
more than 2.5us is interpreted as a reset by the device operating in FS mode.
Table 8.2 Operational Modes
MODE[1:0]
STATE#
STATE NAME
DESCRIPTION
00
0
Normal Operation
Transceiver operates with normal USB data encoding
and decoding
01
1
Non-Driving
Allows the transceiver logic to support a soft disconnect
feature which tri-states both the HS and FS transmitters,
and removes any termination from the USB making it
appear to an upstream port that the device has been
disconnected from the bus
10
2
Disable Bit
Stuffing and NRZI
encoding
Disables bitstuffing and NRZI encoding logic so that 1's
loaded from the TXDATA bus become 'J's on the DP/DM
and 0's become 'K's
11
3
Reserved
N/A
Table 8.3 USB2.0 Test Mode to Macrocell Mapping
USB2.0 TEST MODES
GT3200, SMSC USB3250 SETUP
OPERATIONAL MODE
SIE TRANSMITTED
DATA
XCVRSELECT &
TERMSELECT
SE0_NAK
Normal
No transmit
HS
J
Disable
All '1's
HS
K
Disable
All '0's
HS
Test_Packet
Normal
Test Packet data
HS
相關(guān)PDF資料
PDF描述
GTF701-HS3 2-Line EMI-Filter with ESD -Protection
GTF701-HS3-GS08 2-Line EMI-Filter with ESD -Protection
GTO1200-2R Snubber Capacitors, Dry Self-healing
GTO2940-12RP GTO Clamping Capacitors, Self-healing, Segmented
GTRFS571 Mini size of Discrete semiconductor elements
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GT3-2024SCF 制造商:Hirose 功能描述:
GT3-2024SCF(70) 制造商:Hirose 功能描述:
GT-32090-A0-PBN-C000 制造商:Marvell 功能描述:
GT3-20DP-2.5DSA 制造商:HRS 制造商全稱:HRS 功能描述:Antenna, Sensor, and Communications Trunk Line Connections
GT321 制造商:CORNELL DUBILIER ELECTRONICS 功能描述:Cap Ceramic 220pF 3000V SL 5% (20 X 6mm) Radial 9.5mm 85°C
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*