AMX DESIGN XPRESS V 1.5 - PROGRAMMER GUIDE Podręcznik Użytkownika Strona 132

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7–34 Chapter 7: IP Core Interfaces
Cyclone V Hard IP for PCI Express
Cyclone V Hard IP for PCI Express December 2013 Altera Corporation
User Guide
Configuration Space Register Access Timing
Figure 7–30 shows typical traffic on the
tl_cfg_ctl
bus. The
tl_cfg_add
index
update every eight
coreclkout_hip
, specifying which Configuration Space register
information is being driven onto
tl_cfg_ctl
.
[29:25]
Status Register[15:11]
Records the following 5 primary command status errors:
Bit 15: detected parity error
Bit 14: signaled system error
Bit 13: received master abort
Bit 12: received target abort
Bit 11: signalled target abort
[24]
Secondary Status Register[8]
Master data parity error
[23:6]
Root Status Register[17:0]
Records the following PME status information:
Bit 17: PME pending
Bit 16: PME status
Bits[15:0]: PME request ID[15:0]
[5:1] Secondary Status Register[15:11]
Records the following 5 secondary command status errors:
Bit 15: detected parity error
Bit 14: received system error
Bit 13: received master abort
Bit 12: received target abort
Bit 11: signalled target abort
[0] Secondary Status Register[8] Master Data Parity Error
Table 7–11. Mapping Between tl_cfg_sts and Configuration Space Registers (Part 2 of 2)
tl_cfg_sts Configuration Space Register Description
Figure 7–30. tl_cfg_ctl Timing
coreclkout_hip
tl_cfg_add[3:0]
tl_cfg_ctl[31:0]
D E F 0 1 2 3
00000084 00000000 28100000 08000000 00000002
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