USB MultiSwitchTM Hub
Datasheet
7.1.4.14Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x00)BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | MAX_PWR_BP | Max Power Bus_Powered: Value in 2mA increments that the Hub consumes |
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| from an upstream port (VBUS) when operating as a |
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| value includes the hub silicon along with the combined power consumption |
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| (from VBUS) of all associated circuitry on the board. This value also includes |
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| the power consumption of a permanently attached peripheral if the hub is |
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| configured as a compound device, and the embedded peripheral reports 0mA |
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| in its descriptors. |
7.1.4.15Register 0Eh: Hub Controller Max Current For Self Powered Operation (Reset = 0x00)
BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | HC_MAX_C_SP | Hub Controller Max Current |
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| Hub consumes from an upstream port (VBUS) when operating as a self- |
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| powered hub. This value includes the hub silicon along with the combined |
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| power consumption (from VBUS) of all associated circuitry on the board. This |
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| value does NOT include the power consumption of a permanently attached |
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| peripheral if the hub is configured as a compound device. |
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| Note: The USB 2.0 Specification does not permit this value to exceed |
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| 100mA |
7.1.4.16Register 0Fh: Hub Controller Max Current For Bus Powered Operation (Reset = 0x00)
BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | HC_MAX_C_BP | Hub Controller Max Current |
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| Hub consumes from an upstream port (VBUS) when operating as a bus- |
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| powered hub. This value will include the hub silicon along with the combined |
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| power consumption (from VBUS) of all associated circuitry on the board. This |
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| value will NOT include the power consumption of a permanently attached |
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| peripheral if the hub is configured as a compound device. |
BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | POWER_ON_TIME | Power On Time: The length of time that is takes (in 2 ms intervals) from the |
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| time the host initiated |
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| on that port. System software uses this value to determine how long to wait |
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| before accessing a |
7.1.4.18 | Register 11h: Language ID High (Reset = 0x00) | |
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BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | LANG_ID_H | USB LANGUAGE ID (Upper 8 bits of a 16 bit ID field) |
7.1.4.19 | Register 12h: Language ID Low (Reset = 0x00) | |
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BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | LANG_ID_L | USB LANGUAGE ID (lower 8 bits of a 16 bit ID field) |
SMSC USB2524 | 27 | Revision 1.91 |
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