82C881 Datasheet, PDF (44/46 Pages) List of Unclassifed Manufacturers – FireLink 1394 OHCI Link Controller

FireLink 1394 OHCI
82C881
Field Name
Reserved
Width
5
Bit Position
31:28
Description
Currently not used
• Receive packet end delimiter packet
Field Name
endDelimiter
error
selfIdIncomplete
Reserved
ackCode
FIFOFull
Reserved
Width
1
1
1
3
4
1
22
Bit Position
0
1
2
5:3
9:6
10
31:10
Description
0 – Start Delimiter,
1 – End Delimiter
error bit, when asserted indicates that the packet had
a CRC or data length match error
Self ID phase incomplete , This bit if set indicates that
the self ID phase is incomplete
Currently not used
This field gives the ack Codes as defined in Table 3-2
(Packet event codes) of the 1394 OHCI specification
1.0.
This field is set to 1 when the FIFO becomes full while
receiving a packet.
Currently not used
The following is the format in which the Tx FIFO receives data (32 bit) from TxDMA.
10.2.1.2.4
Isochronous Receive Packet Format
START DELIMITER
HEADER
DATA
®
Page 40
912-2000-031
Revision: 1.0