PDI1394L21 datasheet(39/52 Pages) PHILIPS

39 / 52 page

Philips Semiconductors

Preliminary specification

PDI1394L21

1394 full duplex AV link layer controller

1999 Aug 06

13.2.12

Isochronous Receiver Interrupt Enable (IRXINTE) – Base Address: 0x050

Interrupt enable bits for AV Receiver.

29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7

5 4 3

2 1

31 30

SV00888

Reset Value 0x00000000

Bit 10..0 are interrupt enable bits for the Isochronous Receiver Interrupt Acknowledge (IRXINTACK).

13.2.13

Isochronous Receiver Control Register (IRXCTL) – Base Address: 0x054

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

ERR

SV01017

SPD

31 30

Reset Value 0x00000000

Bit 17..16:

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:

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

1100

reserved

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:

SYNC: Last received SY code in isochronous bus packet header. Bit 1 is odd/even encryption bit key. State of this bit

will be outputted at active (receiving) AVPORT on the AVxENKEY pin while the accompanying application packet is

being outputted. Also see Section 13.2.6 for a description of the operation of this bit..

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