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PDI1394L11 Datasheet, PDF (33/46 Pages) NXP Semiconductors – 1394 AV link layer controller
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Philips Semiconductors
1394 AV link layer controller
Product specification
PDI1394L11
13.2.4 Isochronous Transmitter Interrupt Acknowledge (ITXINTACK) – Base Address: 0x02C
The AV Transmitter Interrupt Control and Status register is the interrupt register for the AV transmitter.
Bits 2, 3, and 4 ”auto repair” themselves, i.e. AVLINK will detect the situation and attempt to recover on its own. The host controller still needs to
clear these interrupts to be alerted the next time.
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
SV00282
Reset Value 0x00000000
Bits 6 .. 0 are interrupt acknowledge bits; and are defined as:
Bit 6:
R/W TRMSYT: Interrupt on transmission of a SYT in CIP header quadlet 2
Bit 5:
R/W TRMBP: Interrupt on payload transmission/discard complete.
Bit 4:
R/W DBCERR: Acknowledge interrupt on Data Block Count (DBC) synchronization loss.
Bit 3:
R/W INPERR: Acknowledge interrupt on input error (input data discarded).
Bit 2:
R/W DISCARD: Interrupt on lost cycle (payload discarded).
Bit 1:
R/W ITXFULL: Interrupt on isochronous memory bank full. This is a fatal error, the recommended action is to reset and
re-initialize the transmitter.
Bit 0:
R/W ITXEMPTY: Interrupt on isochronous memory bank empty.
Other bits will always read ‘0’.
13.2.5 Isochronous Transmitter Interrupt Enable (ITXINTE) – Base Address: 0x030
These are the enabled bits for the AV Transmitter Control.
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 0x00000000
Bits 6..0 are interrupt enable bits for the Isochronous Transmitter Interrupt Acknowledge register (ITXINTACK).
13.2.6 Isochronous Transmitter Control Register (ITXCTL) – Base Address: 0x34
SV00793
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
TAG CHANNEL
SPD SYNC
SV00283
Reset Value 0x00000000
Bit 15..14:
R/W Tag: Tag code to insert in isochronous bus packet header. Should be ‘01’ for IEC 61883 International Standard
data.
Bit 13..8:
R/W Channel: Isochronous channel number.
Bit 5..4:
R/W Speed: Cable transmission speed (S100, S200, S400).
00=100Mbs
01=200Mbs
10=400Mbs
11=reserved
Bit 3..0
R/W Sync: Code to insert in SY field of isochronous bus packet header.
1997 Oct 21
33
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