IDT 89HPES12T3G2, Preliminary User'S Manual

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IDT Configuration Registers
PES12T3G2 User Manual 8 - 21 January 28, 2013
Notes
PCIEDCTL - PCI Express Device Control (0x048)
25:18 CSPLV RO 0x0 Captured Slot Power Limit Value. This field in combination with
the Slot Power Limit Scale value, specifies the upper limit on
power supplied by the slot. Power limit (in Watts) calculated by
multiplying the value in this field by the value in the Slot Power
Limit Scale field.
The value of this field is set by a Set_Slot_Power_Limit Message
and is only applicable for the upstream port. This field is always
zero in downstream ports.
27:26 CSPLS RO 0x0 Captured Slot Power Limit Scale. This field specifies the scale
used for the Slot Power Limit Value.
The value of this field is set by a Set_Slot_Power_Limit Message
and is only applicable for the upstream port. This field is always
zero in downstream ports.
0 -
(v1) 1.0x
1 - (v1p1) 0.1x
2 - (v0p01) 0.01x
3 - (v0p001x) 0.001x
31:28 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type Default
Value
Description
0 CEREN RW 0x0 Correctable Error Reporting Enable. This bit controls reporting
of correctable errors.
1 NFEREN RW 0x0 Non-Fatal Error Reporting Enable. This bit controls reporting of
non-fatal errors.
2 FEREN RW 0x0 Fatal Error Reporting Enable. This bit controls reporting of fatal
errors.
3 URREN RW 0x0 Unsupported Request Reporting Enable. This bit controls
reporting of unsupported requests.
4 ERO RO 0x0 Enable Relaxed Ordering. When set, this bit enables relaxed
ordering. This bit is not applicable to the switch, since the switch
never sets the relaxed ordering bit in transactions it initiates as a
requester. Therefore, this bit is hardwired to 0x0.
7:5 MPS RW 0x0 Max Payload Size. This field sets maximum TLP payload size for
the device.
0x0 - (s128) 128 bytes max payload size
0x1 - (s256) 256 bytes max payload size
0x2 - (s512) 512 bytes max payload size
0x3 - (s1024) 1024 bytes max payload size
0x4 - (s2048) 2048 bytes max payload size
0x5 - reserved (treated as 128 bytes)
0x6 - reserved (treated as 128 bytes)
0x7 - reserved (treated as 128 bytes)
Bit
Field
Field
Name
Type Default
Value
Description