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參數(shù)資料
| 型號(hào)： | SN2005118412ZHK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線控制器 |
| 英文描述： | PCMCIA BUS CONTROLLER, PBGA216 |
| 封裝： | GREEN, PLASTIC, MICRO BGA-216 |
| 文件頁(yè)數(shù)： | 256/271頁(yè) |
| 文件大?。?/td> | 3240K |
| 代理商： | SN2005118412ZHK |
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Principles of Operation
69
September 2005
SCPS110
Power source in D3cold if wake-up support is required from this state.
The Texas Instruments PCIxx12 controller addresses these D3 wake-up issues in the following manner:
Two resets are provided to handle preservation of PME context bits:
Global reset (GRST) is used only on the initial boot up of the system after power up. It places the
controller in its default state and requires BIOS to configure the controller before becoming fully
functional.
PCI reset (PRST) has dual functionality based on whether PME is enabled or not. If PME is enabled,
then PME context is preserved. If PME is not enabled, then PRST acts the same as a normal PCI reset.
Please see the master list of PME context bits in Section 3.8.12.
Power source in D3cold if wake-up support is required from this state. Since VCC is removed in D3cold, an
auxiliary power source must be supplied to the PCIxx12 VCC terminals. Consult the PCI14xx
Implementation Guide for D3 Wake-Up or the PCI Power Management Interface Specification for PCI to
CardBus Bridges for further information.
3.8.11
ACPI Support
The Advanced Configuration and Power Interface (ACPI) Specification provides a mechanism that allows
unique pieces of hardware to be described to the ACPI driver. The PCIxx12 controller offers a generic interface
that is compliant with ACPI design rules.
Two doublewords of general-purpose ACPI programming bits reside in PCIxx12 PCI configuration space at
offset 88h. The programming model is broken into status and control functions. In compliance with ACPI, the
top level event status and enable bits reside in the general-purpose event status register (PCI offset 88h, see
Section 4.31) and general-purpose event enable register (PCI offset 89h, see Section 4.32). The status and
enable bits are implemented as defined by ACPI and illustrated in Figure 316.
Event Output
Event Input
Enable Bit
Status Bit
Figure 316. Block Diagram of a Status/Enable Cell
The status and enable bits generate an event that allows the ACPI driver to call a control method associated
with the pending status bit. The control method can then control the hardware by manipulating the hardware
control bits or by investigating child status bits and calling their respective control methods. A hierarchical
implementation would be somewhat limiting, however, as upstream devices would have to remain in some
level of power state to report events.
For more information of ACPI, see the Advanced Configuration and Power Interface (ACPI) Specification.
3.8.12
Master List of PME Context Bits and Global Reset-Only Bits
PME context bit means that the bit is cleared only by the assertion of GRST when the PME enable bit, bit 8
of the power-management control/status register (PCI offset A4h, see Section 4.43) is set. If PME is not
enabled, then these bits are cleared when either PRST or GRST is asserted.
The PME context bits (function 0) are:
Bridge control register (PCI offset 3Eh, see Section 4.25): bit 6
System control register (PCI offset 80h, see Section 4.29): bits 108
Power-management control/status register (PCI offset A4h, see Section 4.43): bit 15
ExCA power control register (ExCA 802h, see Section 5.3): bits 7, 5 (82365SL mode only), 7, 4, 3, 1, 0
ExCA interrupt and general control (ExCA 803h, see Section 5.4): bits 6, 5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SNA7412ZHK | PCMCIA BUS CONTROLLER, PBGA216 |
| SN260Q | LOCAL AREA NETWORK CONTROLLER, QCC40 |
| SN54128J | TTL/H/L SERIES, QUAD 2-INPUT NOR GATE, CDIP14 |
| SNJ54128W | TTL/H/L SERIES, QUAD 2-INPUT NOR GATE, CDFP14 |
| SN54132J | TTL/H/L SERIES, QUAD 2-INPUT NAND GATE, CDIP14 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN200512N | 制造商:Texas Instruments 功能描述: |
| SN200513N | 制造商:Texas Instruments 功能描述: |
| SN200515N | 制造商:Texas Instruments 功能描述: |
| SN200520N | 制造商:Texas Instruments 功能描述: |
| SN200530DR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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