ZHCS103Q March 2011 – March 2024 TUSB7320 , TUSB7340
PRODUCTION DATA
This read only register defines basic structural parameters supported by the TUSB73X0.
BAR0 register offset: 04h
Register type: Read-Only
Default value: 0800 0840h
Bit No. | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reset State | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bit No. | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reset State | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
BIT | FIELD NAME | ACCESS | DESCRIPTION |
---|---|---|---|
31:24 | MAX_PORTS | r | Number of Ports. For the TUSB7340, this field is 08h to indicate that 8 ports are supported. For the TUSB7320, this field is 04h to indicate that 4 ports are supported. This field also indicates the number of sets of port registers that are addressable in the Operational Register Space. |
23:19 | RSVD | r | Reserved. Returns zeros when read. |
18:8 | MAX_INTRS | r | Number of Interrupters. This field specifies the number of Interrupters that are implemented. The TUSB73x0 implements 8 Interrupters. Each Interrupter is allocated to a vector of MSI-X. |
7:0 | MAX_SLOTS | r | Number of Device Slots. This field specifies the maximum number of Device Context Structures and Doorbell Array entries that are supported. The TUSB73x0 supports 64 Device Slots. |