PDI1394L11 Datasheet, PDF (36/46 Pages) NXP Semiconductors – 1394 AV link layer controller

Philips Semiconductors
1394 AV link layer controller
Product specification
PDI1394L11
13.2.13 Isochronous Receiver Control Register (IRXCTL) – Base Address: 0x054
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SPD TAG CHANNEL
ERR
SYNC
Reset Value 0x00000000
Bit 17..16:
R
SPD: Speed of last received isochronous packet (S100 .. S400).
00 = 100 Mbps
01 = 200 Mbps
10 = 400 Mbps
11 = Reserved
Bit 15..14:
R/W TAG: Isochronous tag value (must match) for AV format, ‘01’ for IEC 61883 International Standard data.
Bit 13..8:
R/W CHAN: Channel number to receive isochronous data.
Bit 7..4:
R
ERR: Error code for last received isochronous AV packet.
Table 9. Error Codes
Code
Name
Meaning
0000 reserved
0001
ack_complete
The node has successfully accepted the packet. If the packet was a request
subaction, the destination node has successfully completed the transaction and no
response subaction shall follow.
0010
through reserved
1100
1101
ack_data_error
The node could not accept the block packet because the data field failed the CRC
check, or because the length of the data block payload did not match the length
contained in the dataLength field. this code shall not be returned for any packet that
does not have a data block payload.
1110
and
1111
reserved
Bit 3..0:
R
SYNC: Last received SY code in isochronous bus packet header.
13.2.14 Isochronous Receiver Memory Status (IRXMEM) – Base Address: 0x058
SV00289
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reset Value 0x00000003
Bit 3:
R
IRXMF: Full: no space available.
Bit 2:
R
IRXMAF: Almost full: exactly one quadlet of storage available.
Bit 1:
R
IRXM5AV: At least 5 more quadlets of storage available.
Bit 0:
R
RXME: Memory bank is empty (no data committed).
SV00290
1997 Oct 21
36