Altera Stratix V Avalon-MM Interface for PCIe Solutions User Manual Page 53

  • Download
  • Add to my manuals
  • Print
  • Page
    / 184
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 52
Table 4-11: Mapping Between tl_cfg_sts and Configuration Space Registers
tl_cfg_sts Configuration Space Register Description
[52:49] Device Status Register[3:0] Records the following errors:
Bit 3: unsupported request detected
Bit 2: fatal error detected
Bit 1: non-fatal error detected
Bit 0: correctable error detected
[48] Slot Status Register[8] Data Link Layer state changed
[47]
Slot Status Register[4] Command completed. (The hot plug
controller completed a command.)
Note: For Root Ports, you enable the
Slot register by turning on Use
Slot Power Register in the
parameter editor. When enabled,
access to Command Completed
Interrupt Enable bit of the Slot
Control register remains Read/
Write. This bit should be
hardwired to 1b'0. You should not
write this bit.
[46:31] Link Status Register[15:0] Records the following link status informa‐
tion:
Bit 15: link autonomous bandwidth status
Bit 14: link bandwidth management status
Bit 13: Data Link Layer link active
Bit 12: Slot clock configuration
Bit 11: Link Training
Bit 10: Undefined
Bits[9:4]: Negotiated Link Width
Bits[3:0] Link Speed
[30]
Link Status 2 Register[0] Current de-emphasis level.
4-20
Hard IP Status Extension
UG-01097_avmm
2014.12.15
Altera Corporation
64- or 128-Bit Avalon-MM Interface to the Application Layer
Send Feedback
Page view 52
1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 183 184

Comments to this Manuals

No comments