s5920 Applied Micro Circuits Corporation (AMCC), s5920 Datasheet - Page 109

• Manufacturer Part Number: s5920
• Description: Pci Product
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

S5920 – PCI Product: PCI Bus Protocol
Figure 52. Access to a Locked Target by its Owner
Figure 54. Error Reporting Signal
109
PCLK
FRAME#
LOCK#
IRDY#
T RDY#
DEVSEL#
AD[31:0]
(I) Driv en by Initiator
(T) Driv en by Target
DS1596
(T )
(T )
(I)
(I)
(I)
AD[31:0]
(T) Driv en by Target
PCLK
FRAME#
C/BE[3:0]
(I) Driv en by Initiator
PAR
SERR#
PERR#
1
Address
IDENT IFIES
OWNER
LOCKED
T ARGET
(T)
(T)
2
(I)
(I)
Data
(I)
1
Address
READ TRANSACTION
3
CMD A
CONDIT ION
Data
UNLOCKS
T ARGET
A
WHICH
2
4
A
(I)
5
3
BE's A
(T)
ERROR
Data A
GOOD
4
(T)
Figure 53. Access Attempt to a Locked Target
(I)
5
AD[31:0]
ERROR
WRITE TRANSACTION
FRAME#
TRDY#
GOOD
PCLK
LOCK#
STOP#
(I) Driven by Initiator
(T) Driven by Target
IRDY#
DEVSEL#
Address
CMD B
B
6
(T)
B
(I)
(I)
(I)
(T)
(T)
Data B
BE's B
(I)
IDENTIFIES THAT BUS
1
MASTER IS NOT ITS
Address
LOCKED TARGET
7
ERROR
GOOD
OWNER
(I)
Revision 1.02 – April 12, 2007
2
AMCC Confidential and Proprietary
8
ERROR
GOOD
Data
3
9
RETRY TERMINATION
Data Book
CAUSES TARGET
4
5