USB3-FRM14 Users Manual (Rev 1.1)
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- http://www.daqsystem.com
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SDID
--- Secondary Data Identification word for Type 2
[Table 7. Data Identification Word Assignment]
Data
Type
Data
Value
Data Assignment
Data
Type
Data
Value
Data
Assignment
Type 2
(2-Word
ID)
00h
Undefined Format
Type 2
00h
Undefined
Format
01h ~ 03h Reserved
01h
None
04h ~ 0Fh Reserved
10h ~ 3Fh Reserved
40h ~ 4Fh Internationally Registered
50h ~ 5Fh User Application
60h ~ 7Fh Internationally Registered
Type 2
(1-Word
ID)
80h
Ancillary
Packet
marked
for
deletion
81h ~ 83h Reserved
84h
Optional Ancillary Packet Data end
marker
85h ~ 87h Reserved
88h
Optional Ancillary Packet Data start
marker
89h ~ 9Fh Reserved
A0h~ BFh Internationally Registered
C0h~ CFh User Application
D0h~ DFh Internationally Registered
E0h~ FFh
Internationally Registered
The SDID is only if the DID is less than 128(80 hex), is normally an 8-bit value. It is
encoded in the same fashion as the DID.
Bit 0 ~ 7 : b7 (MSB) through b0 (LSB) identification bit word (00h ~ FFh)
Bit 8 : even parity from Bit 0 to Bit7, Bit 9 : Not Bit8
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DBN
--- The Data Block Number is only valid if the DID is 127(80 hex) or greater. It is used to
identify multiple packets of the same type within a field. The DBN is an 8-bit value,
encoded in the same fashion as the SDID.
