USB MultiSwitchTM Hub
Datasheet |
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7.1.4.25 | Register | |
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BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | SER_STR | Serial String, UNICODE |
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| Maximum string length is 31 characters (62 Bytes) |
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| Note: The String consists of individual 16 Bit UNICODE |
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| characters. The Characters will be stored starting with the LSB at the |
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| least significant address and the MSB at the next |
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| (subsequent characters must be stored in sequential contiguous |
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| address in the same LSB, MSB manner). Some EEPROM |
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| programmers may transpose the MSB and LSB, thus reversing the |
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| Byte order. Please pay careful attention to the Byte ordering or your |
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| selected programming tools. |
BIT |
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NUMBER | BIT NAME | DESCRIPTION |
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7:0 | PRTDT | Port Delay Timer: A |
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| the time a state change is detected on the PRT_ASSIGN[3:0] pins until the |
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| internal logic begins the port switching process for the affected port (or ports) |
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| to a different upstream host. |
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| Note: This register effectively creates a programmable debounce circuit for |
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| mechanical switches that may be connected to the PRT_ASSIGN[3:0] |
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| interface pins. |
BIT |
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NUMBER | BIT NAME |
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| DESCRIPTION |
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7:0 | PORT_INT_0A | Port Assign Interface 0A: Determines the configuration of the hardware | ||
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| interface configuration for the assignment of ports 1 & 2 to upstream hosts. | ||
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| Bit [7:4] = | ‘0000’ | Port 2 is unassigned |
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| ‘0001’ | Port 2 owned by UP1 |
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| ‘0010’ | Port 2 owned by UP2 |
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| ‘0011’ | Reserved, will default to ‘0001’ value |
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| to |
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| ‘1111’ |
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| Bit [3:0] = | ‘0000’ | Port 1 is unassigned |
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| ‘0001’ | Port 1 owned by UP1 |
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| ‘0010’ | Port 1 owned by UP2 |
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| ‘0011’ | Reserved, will default to ‘0001’ value |
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| to |
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| ‘1111’ |
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SMSC USB2524 | 29 | Revision 1.91 |
| DATASHEET |
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