IDT 89HPES16NT2, User Manual

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IDT Non-Transparent Mode Operation
PES16NT2 User Manual 10 - 49 April 15, 2008
Notes
PC_VCR0CAP- VC Resource 0 Capability (0x110)
PC_VCR0CTL- VC Resource 0 Control (0x114)
31:12 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type
Default
Value
Description
7:0 PARBC RWL 0x1 Port Arbitration Capability. This field indicates the type of
port arbitration supported by the VC. Each bit corresponds
to a Port Arbitration capability. When more than one arbi-
tration scheme is supported, multiple bits may be set.
The PES16NT2 supports hardware fixed round robin only.
bit 0 - hardware fixed round robin
bit 1 - N/As
bit 2 - N/A
bit 3 - N/A
bit 4 - N/A
bit 5 - N/A
13:8 Reserved RO 0x0 Reserved field.
14 APS RO 0x0 Advanced Packet Switching. Not supported.
15 RJST RO 0x0 Reject Snoop Transactions. Not supported for switch
ports.
22:16 MAXTS RO 0x0 Maximum Time Slots. Since this VC does not support
time-based WRR, this field is not valid.
23 Reserved RO 0x0 Reserved field.
31:24 PATBLOFFSET RWL 0x0 Port Arbitration Table Offset. This field contains the off-
set of the port arbitration table from the base address of the
Virtual Channel Capability structure in double quad words
(16 bytes).
Bit
Field
Field
Name
Type
Default
Value
Description
7:0 TCVCMAP bit 0 RO
bits 1
through
7
RW
0xFF TC/VC Map. This field indicates the TCs that are mapped
to the VC resource. Each bit corresponds to a TC. When a
bit is set, the corresponding TC is mapped to the VC.
15:8 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type
Default
Value
Description