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TUSB7320 Datasheet(PDF) 58 Page - Texas Instruments |
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TUSB7320 Datasheet(HTML) 58 Page - Texas Instruments |
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58 / 115 page  TUSB7320, TUSB7340 SLLSE76J – MARCH 2011 – REVISED MAY 2012 www.ti.com Table 4-94. General Control 0 Register Description Bit Field Name Access Description 31:12 RSVD r Reserved. Returns zeros when read. L1 Exit Latency for Asynchronous Clock. This value in this field is the value reported in the L1_LATENCY field in the Link Capabilities Register 11:9† L1_EXIT_LAT_ASYNC† rw when the CCC bit in the Link Control Register is ‘0’. This field defaults to 110b. L1 Exit Latency for Common Clock. This value in this field is the value 8:6† L1_EXIT_LAT_COMMON† rw reported in the L1_LATENCY field in the Link Capabilities Register when the CCC bit in the Link Control Register is ‘1’. This field defaults to 110b. L0s Exit Latency for Asynchronous Clock. This value in this field is the value reported in the L0s_LATENCY field in the Link Capabilities 5:3† L0s_EXIT_LAT_ASYNC† rw Register when the CCC bit in the Link Control Register is ‘0’. This field defaults to 011b. L0s Exit Latency for Common Clock. This value in this field is the value reported in the L0s_LATENCY field in the Link Capabilities Register 2:0† L0s_EXIT_LAT_COMMON† rw when the CCC bit in the Link Control Register is ‘1’. This field defaults to 011b. 4.62 General Control 1 Register This register is a read/write register is used to control various functions of the TUSB73X0. This register is reset by a PCI Express reset (PERST#), a GRST#, or the internally-generated power-on reset. PCI register offset: D8h Register type:Read-Only,Read/Write Default value: 0000 001Bh Table 4-95. PCI Register D8h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 No. Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 State Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 No. Reset 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 State Table 4-96. General Control 1 Register Description Bit Field Name Access Description 31:6 RSVD r Reserved. Returns zeros when read. L1ASPM Entry Timer. This field specifies the value of the L1ASPM Entry 5:3† L1ASPM_ENTRY_TIMER† rw Timer. This field defaults to ‘011’, corresponding to a value of 8 µs. L0s Entry timer. This field specifies the value of the L0s Entry timer. This 2:0† L0s_ENTRY_TIMER† rw field defaults to ‘011’, corresponding to a value of 4 µs. 58 CLASSIC PCI CONFIGURATION SPACE Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TUSB7320 TUSB7340 |
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