pdi1394l40 NXP Semiconductors, pdi1394l40 Datasheet - Page 56

• Manufacturer Part Number: pdi1394l40
• Description: 1394 Enhanced Av Link Layer Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
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.
Reset Value 0x00000000
Bits 9 .. 0 are interrupt acknowledge bits; and are defined as:
Bit 9:
Bit 8:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
13.2.5 Isochronous Transmitter Interrupt Enable (ITXINTE) – Base Address: 0x030
These are the enabled bits for the AV Transmitter Control.
Reset Value 0x00000000
Bits 13..0 are interrupt enable bits for the Isochronous Transmitter Interrupt Acknowledge register (ITXINTACK).
2000 Dec 15
1394 enhanced AV link layer controller
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Other bits will always read ‘0’.
IT100LFT: Interrupt when transmitter queue reaches 100 quadlets from full.
IT256LFT: Interrupt when transmitter queue reaches 256 quadlets from full.
IT512LFT: Interrupt when transmitter queue reaches 512 quadlets from full. This bit is disabled if 0.5K Byte buffer
size is set.
TRMSYT: Interrupt on transmission of a SYT in CIP header quadlet 2
TRMBP: Interrupt on payload transmission/discard complete.
DBCERR: Acknowledge interrupt on Data Block Count (DBC) synchronization loss.
INPERR: Acknowledge interrupt on input error (input data discarded).
DISCARD: Interrupt on lost cycle (payload discarded).
ITXFULL: Interrupt on isochronous memory bank full. This is a fatal error. The ITX transmitter will reset itself
automatically when this occurs.
ITXEMPTY: Interrupt on isochronous memory bank empty.
31 30
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
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
53
6
5 4 3
SV01842
SV01843
2 1
0
PDI1394L40
Preliminary specification