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USB2534 数据表(PDF) 17 Page - Microchip Technology

部件名 USB2534
功能描述  USB 2.0 Hi-Speed 4-Port Hub Controller
PDF  52 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB2534 数据表(HTML) 17 Page - Microchip Technology

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USB 2.0 Hi-Speed 4-Port Hub Controller
Datasheet
 2014 Microchip Technology Inc.
DS00001713A-page 17
1
High Speed
Indicator
HS_IND
O8
Indicates a high speed connection on the
upstream port. The active state of the LED will be
determined as follows:
If CFG_SEL1 = 0, HS_IND is active high.
If CFG_SEL1 = 1, HS_IND is active low.
Asserted = hub is connected at high speed
Negated = Hub is connected at full speed
Configuration
Select 1
Configuration
Strap
CFG_SEL1
IS
This strap is used in conjunction with CFG_SEL0
to set the hub configuration method. Refer to
Section 6.3.2, "Configuration Select
(CFG_SEL[1:0])," on page 30 for additional
information.
See Note 3.4 for more information on
configuration straps.
1
Port 1 Power
Output
PRTPWR1
O8
Enables power to a downstream USB device
attached to Port 1.
0 = Power disabled on downstream Port 1
1 = Power enabled on downstream Port 1
Port 1 Control
PRTCTL1
OD8/IS
(PU)
When configured as PRTCTL1, this pin functions
as both the Port 1 power enable output
(PRTPWR1) and the Port 1 over-current sense
input (OCS1_N). Refer to the PRTPWR1 and
OCS1_N descriptions for additional information.
Port 1 Battery
Charging
Configuration
Strap
BC_EN1
IS
This strap is used to indicate support of the
battery charging protocol on Port 1. Enabling
battery charging support allows a device on the
port to draw currents per the USB battery
charging specification.
0 = Battery charging is not supported on Port 1
1 = Battery charging is supported on Port 1
See Note 3.4 for more information on
configuration straps.
Table 3.1 Pin Descriptions (continued)
NUM PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION



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