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USB5532B 数据表(PDF) 40 Page - Microchip Technology

部件名 USB5532B
功能描述  2-Port SS/HS USB Hub Controller
PDF  68 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB5532B 数据表(HTML) 40 Page - Microchip Technology

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 2012 - 2015 Microchip Technology Inc.
DS00001679C-page 40
USB5532B
5.6.5
LED1/PIO1 REGISTER 2
5.6.6
VBUS AND OCS PULL-DOWN REGISTER
TABLE 5-22:
LED1/PIO1 REGISTER 2
LED1_CTL2
(0X0809)
LED1_PIO1 Control Register
Bit
Name
R/W
Description
7:2
TRAILOFF_TIME
R/W
In Blink mode: Time the LED must continue blinking after LED_ON is
turned off. TRAIL_TIME is in 50ms increments. Range is 50 ms to 3.15
seconds.
In Breath mode: This is the time for an sleeping in between breadths in
500 ms increments.
1
LED_ON
R/W
If LED_ON is set, then start blinking or breathing this LED.
Blink timer starts when this bit is enabled. No short blinks permitted. When
this bit is disabled, blinking stops when TRAIL_TIME expires.
In Breath Mode: Breath timer starts when this bit is enabled. No short
blinks permitted. When this bit is disabled, blinking stops immediately.
0
LED_GPIO
R/W
‘0’ = PIO1
‘1’ = LED1
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.



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