Revision 1.02 – April 12, 2007
S5920 – PCI Product: PCI Bus Protocol
Data Book
Figure 52. Access to a Locked Target by its Owner
Figure 53. Access Attempt to a Locked Target
1
2
3
4
5
1
2
3
4
5
PCLK
PCLK
(I)
(I)
FRAME#
LOCK#
AD[31:0]
FRAME# (I)
LOCK#
(I)
Address
Data
Data
AD[31:0]
Address
Data
(I)
IRDY#
(I)
(T)
(T)
IRDY#
(T)
(T)
TRDY#
DEVSEL#
TRDY#
DEVSEL#
LOCKED
TARGET
IDENTIFIES
CONDITION
WHICH
UNLOCKS
TARGET
(T)
STOP#
(I)Driven byInitiator
(T)DrivenbyTarget
OWNER
LOCKED TARGET
(I) Driven by Initiator
(T) Driven by Target
IDENTIFIES THAT BUS
MASTER ISNOT ITS
OWNER
CAUSESTARGET
RETRYTERMINATION
Figure 54. Error Reporting Signal
1
2
3
4
5
6
7
8
9
PCLK
(I)
(I)
FRAME#
AD[31:0]
C/BE[3:0]
(T)
(I)
(I)
Address
Address
DataA
DataB
A
B
CMDA
BE's A
CMDB
BE's B
(I)
(T)
(I)
(I)
PAR
GOOD
ERROR
GOOD
ERROR
(T)
(T)
SERR#
PERR#
GOOD
ERROR
GOOD
ERROR
A
B
READTRANSACTION
WRITETRANSACTION
(I)Drivenby Initiator
(T) Driven by Target
109
DS1596
AMCC Confidential and Proprietary
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
