the PCI Bus demystified phần 1 ppt
the PCI Bus demystified phần 1 ppt
... Expansion ROM 10 7
Capabilities List 11 0
Vital Product Data 11 1
Summary 11 5
Chapter 7: PCI BIOS 11 6
Operating Modes 11 6
Is the BIOS There? 11 7
BIOS Services 11 8
Generate Special Cycle 12 0
Summary 12 4
Chapter ... 9
The VESA Local Bus 10
Introducing PCI 11
Features 11
The PCI Special Interest Group 12
PCI Signals 13
Signal Groups 13
Signal Types 18...
the PCI Bus demystified phần 3 pptx
... C/BE#[2:0] must be 1. See
Table 3-3.
Bus Protocol
Table 3-3
AD1:0 implies which BE# lines are valid
AD1 AD0 C/BE#3 C/BE#2 C/BE #1 C/BE#0
0 0XXX0
01XX 01
10X 011
11 011 1
0: line must be asserted
1: line must ... immediately 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.
P...
the PCI Bus demystified phần 2 pdf
... Acknowledge
0001Special Cycle
0 010 I/O Read
0 011 I/O Write
010 0Reserved
010 1Reserved
011 0Memory Read
011 1Memory Write
10 00Reserved
10 01Reserved
10 10Configuration Read
10 11Configuration Write
11 00Memory ... Write
11 00Memory Read Multiple
11 01Dual-Address Cycle
11 10Memory Read Line
11 11Memory Write and Invalidate
15
C/BE[3::0] Bus command and byte enables are mul...
the PCI Bus demystified phần 4 docx
... arrangement.
The “Thevenin equivalent” impedance of the 18 0/330 ohm divider
is 12 0 ohms while the divider maintains an open-circuit voltage of
3.4 volts.
PCI Bus Demystified
Figure 5 -1: “Traditional bus ... V
out
≤ 1. 4 –44 mA 1
1.4 < V
out
< 2.4
–44+( V
out
1. 4)
mA 1, 2
3 .1 < V
out
< V
cc
Eq. A 1, 3
(Test Point) V
out
= 3 .1 14 2 mA 3
I
ol(AC
) Swi...
the PCI Bus demystified phần 5 pps
... outputs.
PCI Bus Demystified
Figure 5-6: Characteristic V/I curves for a PCI driver
in the 3.3 V signaling environment.
10 0
The writable bits operate differently than normal. A bit is set to 1
by the ... MHz, the specification places limits on the trace length of
PCI signals on expansion boards. The 32-bit interface signals are
limited to 1. 5" from the top e...
the PCI Bus demystified phần 6 pdf
... 64-bit space
11 - reserved
Memory space indicator
2 1 0
31
1
Base Address
Reserved
I/O space indicator
11 8
Having found the BIOS32 Service Directory, we can now inquire
if the PCI BIOS is present. ... An extension of the Device ID
(Subsystem ID) in the Configuration Header.
EC EC Level. Identifies the Engineering Change Level of
the board.
11 0
PCI Struct Len: The l...
the PCI Bus demystified phần 7 pps
... 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
13 7
Chances ... sees the transaction. Bridge 3 passes the transaction
Figure 8-5: Bus number registers.
Host
Bridge 0
CPU
Host
Bus
PCI
Device
P...
the PCI Bus demystified phần 8 docx
... recent addition to the 11 01
specification, designated 11 01. 11, provides a standardized mechanism
for rear-panel I/O in both the 3U and the extended 6U configuration
(see Figure 9-5). The pins of P2 ... logically
divided into two parts, J1 and J2, each 11 0 pins. J1 holds the basic
32-bit PCI bus as well as the connector key. J2 supports the 64-bit
extension as well as...
the PCI Bus demystified phần 9 pps
... insertion
event the system activates the software connection process for the
inserted board. For an extraction event the system activates the
PCI Bus Demystified
17 5
the active bus. Note that there is ... termination of the bus signals.
CompactPCI
16 9
■ Power up the slot
■ Deassert RST# and connect the slot to the bus, in
either order.
■ Change the optional...
the PCI Bus demystified phần 10 pps
... 12 5 12 8
host to PCI, 12 5 12 6
interrupt handling, 13 6 13 7
PCI to legacy bus, 12 6
PCI to PCI, 12 7
prefetching, 10 6 10 7, 13 5 13 6
posting, 13 6
resource locking, 14 2 14 6
VGA palette “snooping”,
14 0 14 2
Bus:
defined, ... 10 3 10 7
BIOS:
operating modes, 11 6
services, 11 8 11 9
Bridging:
address filtering, 13 2 13 3
bus number registers, 13 0 13 2
compact...