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USB5533B 数据表(PDF) 41 Page - Microchip Technology

部件名 USB5533B
功能描述  3-Port SS/HS USB Hub Controller
PDF  71 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB5533B 数据表(HTML) 41 Page - Microchip Technology

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 2012 - 2015 Microchip Technology Inc.
DS00001680C-page 41
USB5533B
5.6.6
VBUS AND OCS PULL-DOWN REGISTER
5.6.7
LED0 PULL-DOWN REGISTER
5.6.8
VBUS AND OCS DIRECTION REGISTER
TABLE 5-23:
VBUS AND OCS PULL-DOWN REGISTER
VBUS_OCS_PD
(0X082D)
VBUS and OCS Pull-Down Register
Bit
Name
R/W
Description
7:5
Reserved
R/W
Reserved
4
OCS4
R/W
“0” = Disables the pull-down resistor on the OCS4 pin.
“1” = Enables the pull-down resistor on the OCS4 pin.
3
OCS3
R/W
“0” = Disables the pull-down resistor on the OCS3 pin.
“1” = Enables the pull-down resistor on the OCS3 pin.
2
OCS2
R/W
“0” = Disables the pull-down resistor on the OCS2 pin.
“1” = Enables the pull-down resistor on the OCS2 pin.
1
OCS1
R/W
“0” = Disables the pull-down resistor on the OCS1 pin.
“1” = Enables the pull-down resistor on the OCS1 pin.
0
VBUS
R/W
“0” = Disables the pull-down resistor on the VBUS pin.
“1” = Enables the pull-down resistor on the VBUS pin.
TABLE 5-24:
LED0 PULL-DOWN REGISTER
LED0_PD
(0X082F)
LED0 Pull-Down Register
Bit
Name
R/W
Description
7:1
Reserved
R/W
Reserved.
0
LED0
R/W
“0” = Disables the pull-down resistor on the LED0 pin.
“1” = Enables the pull-down resistor on the LED0 pin.
TABLE 5-25:
VBUS AND OCS DIRECTION REGISTER
VBUS_OCS_DIR
(0X0831)
VBUS and OCS Direction Register
Bit
Name
R/W
Description
7:5
Reserved
R/W
Reserved
4
OCS4
R/W
Direction: 0 = In, 1 = Out.
3
OCS3
R/W
Direction: 0 = In, 1 = Out.
2
OCS2
R/W
Direction: 0 = In, 1 = Out.
1
OCS1
R/W
Direction: 0 = In, 1 = Out.
0
VBUS
R/W
Direction: 0 = In, 1 = Out.



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