USB2422
DS00001726B-page 28 2013 - 2015 Microchip Technology Inc.
4.4.13 MAX POWER FOR SELF-POWERED OPERATION REGISTER (MAXPS)
4.4.14 MAX POWER FOR BUS-POWERED OPERATION REGISTER (MAXPB)
4.4.15 HUB CONTROLLER MAX CURRENT FOR SELF-POWERED OPERATION REGISTER
(HCMCS)
Address: 0Ch Size: 8 bits
Bits Description Type Default
7:0 Max Power Self-Powered (MAX_PWR_SP)
Value in 2mA increments that the Hub consumes from an upstream port
(VBUS) when operating as a self-powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value also includes the power
consumption of a permanently attached peripheral if the hub is configured as
a compound device, and the embedded peripheral reports 0mA in its
descriptors.
Note: The USB2.0 Specification does not permit this value to exceed
100mA.
R/W 00h
Address: 0Dh Size: 8 bits
Bits Description Type Default
7:0 Max Power Bus-Powered (MAX_PWR_BP)
Value in 2mA increments that the Hub consumes from an upstream port
(VBUS) when operating as a self-powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value also includes the power
consumption of a permanently attached peripheral if the hub is configured as
a compound device, and the embedded peripheral reports 0mA in its
descriptors.
R/W 00h
Address: 0Eh Size: 8 bits
Bits Description Type Default
7:0 Hub Controller Max Current Self-Powered (HC_MAX_C_SP)
Value in 2mA increments that the Hub consumes from an upstream port
(VBUS) when operating as a self- powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value does NOT include the power
consumption of a permanently attached peripheral if the hub is configured as
a compound device.
Note: The USB2.0 Specification does not permit this value to exceed
100mA.
R/W 00h
2013 - 2015 Microchip Technology Inc. DS00001726B-page 29
USB2422
4.4.16 HUB CONTROLLER MAX POWER FOR BUS-POWERED OPERATION REGISTER (HCMCB)
4.4.17 POWER-ON TIME REGISTER (PWRT)
4.4.18 LANGUAGE ID HIGH REGISTER (LANGIDH)
4.4.19 LANGUAGE ID LOW REGISTER (LANGIDL)
4.4.20 MANUFACTURER STRING LENGTH REGISTER (MFRSL)
Address: 0Fh Size: 8 bits
Bits Description Type Default
7:0 Hub Controller Max Power Bus-Powered (MAX_PWR_BP)
Value in 2mA increments that the Hub consumes from an upstream port
(VBUS) when operating as a bus- powered hub. This value will include the
hub silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value will NOT include the power
consumption of a permanently attached peripheral if the hub is configured as
a compound device.
R/W 00h
Address: 10h Size: 8 bits
Bits Description Type Default
7:0 Power-On Time (POWER_ON_TIME)
The length of time that is takes (in 2 ms intervals) from the time the host
initiated power-on sequence begins on a port until power is good on that
port. System software uses this value to determine how long to wait before
accessing a powered-on port.
R/W 00h
Address: 11h Size: 8 bits
Bits Description Type Default
7:0 USB Language ID High (LANG_ID_H)
Upper 8 bits of the 16-bit language ID field.
R/W 00h
Address: 12h Size: 8 bits
Bits Description Type Default
7:0 USB Language ID Low (LANG_ID_L)
Lower 8 bits of the 16-bit language ID field.
R/W 00h
Address: 13h Size: 8 bits
Bits Description Type Default
7:0 Manufacturer String Length (MFR_STR_LEN)
Maximum string length is 31 characters.
R/W 00h
USB2422
DS00001726B-page 30 2013 - 2015 Microchip Technology Inc.
4.4.21 PRODUCT STRING LENGTH REGISTER (PRDSL)
4.4.22 SERIAL STRING LENGTH REGISTER (SERSL)
4.4.23 MANUFACTURER STRING REGISTERS (MANSTR)
4.4.24 PRODUCT STRING REGISTERS (PRDSTR)
Address: 14h Size: 8 bits
Bits Description Type Default
7:0 Product String Length (PRD_STR_LEN)
Maximum string length is 31 characters.
R/W 00h
Address: 15h Size: 8 bits
Bits Description Type Default
7:0 Serial String Length (SER_STR_LEN)
Maximum string length is 31 characters.
R/W 00h
Address: 16h-53h Size: 8 bits
Bits Description Type Default
7:0 Manufacturer String (MFR_STR)
UNICODE UTF-16LE per USB 2.0 Specification.
Maximum string length is 31 characters (62 Bytes).
Note: The String consists of individual 16 Bit UNICODE UTF-16LE
characters. The Characters will be stored starting with the LSB at
the least significant address and the MSB at the next 8-bit location
(subsequent characters must be stored in sequential contiguous
address in the same LSB, MSB manner).
R/W 00h
Address: 54h-91h Size: 8 bits
Bits Description Type Default
7:0 Product String (PRD_STR)
UNICODE UTF-16LE per USB 2.0 Specification.
Maximum string length is 31 characters (62 Bytes).
Note: The String consists of individual 16 Bit UNICODE UTF-16LE
characters. The Characters will be stored starting with the LSB at
the least significant address and the MSB at the next 8-bit location
(subsequent characters must be stored in sequential contiguous
address in the same LSB, MSB manner).
R/W 00h

USB2422T-I/MJ

Mfr. #:
Manufacturer:
Microchip Technology
Description:
USB Interface IC Low Pin Count 2-Port USB 2.0 Hi-Speed Hub Controller
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet