USB5533B Datasheet, PDF (44/71 Pages) Microchip Technology – 3-Port SS/HS USB Hub Controller

USB5533B
5.6.15 LED0 PULL-UP RESISTOR REGISTER
TABLE 5-32: LED0 PULL-UP RESISTOR REGISTER
LED0_PU
(0X083F)
LED0 Pull-Up Register
Bit
Name
R/W
Description
7:1
Reserved
0
LED0
R/W Reserved
R/W “0” = Disables the pull-up resistor on the LED0 pin.
“1” = Enables the pull-up resistor on the LED0 pin.
5.6.16 PORT POWER PULL-DOWN RESISTOR REGISTER
TABLE 5-33: PORT POWER PULL-DOWN RESISTOR REGISTER
PRT_PWR_PD
(0X092E)
Port Power Pull-Down Register
Bit
Name
R/W
Description
7:1
PRT_PWR_PD[7:1] R/W “0” = Disables the pull-down resistor on the PRT_PWR[N] pad. Where N
is the bit being controlled. Bit 1 controls PRT_PWR 1 and so on.
“1” = Enables the pull-down resistor on the PRT_PWR[N] pad.
0
Reserved
R/W Reserved
5.6.17 PORT POWER DIRECTION REGISTER
TABLE 5-34: PORT POWER DIRECTION REGISTER
PRT_PWR_DIR
(0X0932)
Port Power Direction Register
Bit
Name
R/W
Description
7:1
PRT_PWR_D[7:1] R/W PRT_PWR[7:1] Direction: 0 = In, 1 = Out.
0
Reserved
R/W Reserved
5.6.18 PORT POWER OUTPUT REGISTER
TABLE 5-35: PORT POWER OUTPUT REGISTER
PRT_PWR_OUT
(0X0936)
Port Power Output Register
Bit
Name
R/W
Description
7:1
PRT_PWR_O[7:1] R/W PRT_PWR[7:1] Output Buffer Data.
0
Reserved
R/W Reserved
DS00001680C-page 44
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