the PCI Bus demystified phần 9 pps

... termination of the bus signals. CompactPCI 1 69 ■ Power up the slot ■ Deassert RST# and connect the slot to the bus, in either order. ■ Change the optional slot state indicator to show that the slot ... insertion event the system activates the software connection process for the inserted board. For an extraction event the system activates the PCI Bus Demystified...

Ngày tải lên: 07/08/2014, 11:22

... identify the device along with various operational characteristics. ■ Vendor ID: Identifies the vendor of the device. More specifically, it identifies the vendor of the PCI silicon. PCI Bus Demystified Figure ... through to the PCI bus. PCI Bus Demystified Figure 6-1: x86 configuration address. Driving IDSEL A device is selected as the target of a configuration...

Ngày tải lên: 07/08/2014, 11:22

... bridge hierarchy. Host -PCI Bridge Memory CPU Host Bus PCI Device PCI- PCI Bridge 1 PCI- ISA Bridge PCI- PCI Bridge 2 PCI Device PCI Device PCI Bus 0 ISA Bus PCI Bus 1 PCI Bus 2 PCI Option Card Cache Legacy Device 137 Chances ... sees the transaction. Bridge 3 passes the transaction Figure 8-5: Bus number registers. Host Bridge 0 CPU Host Bus PCI Device...

Ngày tải lên: 07/08/2014, 11:22

... Res Gnd Res 19 Gnd Gnd Res Res Res 18 Bus Res Bus Res Bus Res Gnd Bus Res 17 Bus Res Gnd PRST# REQ6# (3) GNT6# (3) 16 Bus Res Bus Res DEG# Gnd Bus Res 15 Bus Res Gnd FAL# REQ5# (3) GNT5# (3) 14 ... introduction to the theory, math, and science behind telecommunications. The CD-ROM contains useful Matlab tutorials and a full searchable version of the book. 1-87870...

Ngày tải lên: 07/08/2014, 11:22

... monopolize the bus. This violates the low-latency spirit of the PCI spec. On the other hand, the specification does allow the notion of bus parking.” The arbiter may be designed to “park” the bus on ... While the choice of a default master is up to the system designer, the specification recommends parking on the last master that acquired the bus. PCI Bus...

Ngày tải lên: 07/08/2014, 11:22

... issues a retry to the master and begins executing the transaction internally. This allows the bus to be used by other masters while the target is busy. PCI Bus Demystified 39 least significant ... phase, another higher priority master may request the bus causing the arbiter to remove GNT# from the agent in the process of stepping. Since the stepping agent hasn’t a...

Ngày tải lên: 07/08/2014, 11:22

... referring to the signal level on the PCI pins and not to the voltage that powers the board. The motherboard (including connectors) defines the signaling environment for the bus, whether it be 5V ... ACK64#. PCI Bus Demystified 60 supply the interrupt vector. The C/BE# bus indicates which bytes of the interrupt vector are valid. Because PCI is processor indepen...

Ngày tải lên: 07/08/2014, 11:22

... Options Set PCI IRQ PCI Bus Demystified ENTRY: EAX Service identifier. 4-character string “ $PCI (0 494 35024h) EBX Function code in BL. 0 is the only function currently defined. Other bytes 0 EXIT: AL ... the number of the last PCI bus segment in the system. Segments are numbered sequentially from 0 to the value returned in CL. Find PCI Device/Class This pair of funct...

Ngày tải lên: 07/08/2014, 11:22

... CompactPCI bus, STD 32 or VME. The Telephony specification makes use of J4 and J5 (see Figure 9- 4). PCI Bus Demystified Figure 9- 4: Compact PCI connector allocation. Front and Rear Panel I/O The ... the rotation repeats for the next four slots. PCI Bus Demystified Figure 9- 6: Required interrupt routing. Backplane Design Rules In the course of developing the Co...

Ngày tải lên: 07/08/2014, 11:22

... in the development of PC architecture. Revision 1 of the PCI specification appeared in June of 199 2. Revision 2.0 came out in April 199 3 to be followed by Rev. 2.1 in the first quarter of 199 5 ... detail. Figure 1-2: Functional diagram of the VL Bus. The VL Bus solved the bandwidth problem (in the short term anyway). On a 33 MHz, 32-bit processor bus, the VL Bus cou...

Ngày tải lên: 07/08/2014, 11:22