IDT 89HPES16NT2, User Manual

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IDT Transparent Mode Operation
PES16NT2 User Manual 9 - 4 April 15, 2008
Notes
TLP Type Error Check
All LENGTH < Max_Payload_Size (i.e., MPS field in
PCIEDCTL register)
I/O read request LENGTH = 1 (doubleword)
TC = 0,
ATTR = 0
The actual packet length is correct (4 doublewords
when CRC is present, 3doublewords otherwise)
I/O write request LENGTH = 1 (doubleword)
TC = 0
ATTR = 0
The actual packet length is correct (5 doublewords
when CRC is present, 4 doublewords otherwise)
Configuration read request LENGTH = 1 (doubleword)
TC = 0,
ATTR = 0
The actual packet length is correct (4 doublewords
when CRC is present, 3doublewords otherwise)
Configuration write request LENGTH = 1 (doubleword)
TC = 0
ATTR = 0
The actual packet length is correct (5 doublewords
when CRC is present, 4 doublewords otherwise)
Memory read request (32- and 64-bit address
mode) The packet length is correct.
32-bit address mode: 3 doublewords when ECRC
is present, 4 doublewords otherwise
64-bit address mode: 4 doublewords when ECRC
is present, 5 doublewords otherwise
Memory write request (32- and 64-bit address
mode) The packet length is correct.
32-bit address mode:
- Number of doublewords received equals
4 when ECRC is present
- Number of doublewords received equals
3 when a packet does not contain
ECRC
64-bit address mode:
-Number of doublewords received equals LENGTH
+ 5 when ECRC is present
- Number of doublewords received equals
4 when a packet does not contain
ECRC
Table 9.4 Malformed TLP Error Checks (Part 1 of 2)