PDI1394P25 View Datasheet(PDF) - Philips Electronics

Part Name

Description

MFG CO.

PDI1394P25

1-port 400 Mbps physical layer interface

Philips Electronics 

Philips Semiconductors

1-port 400 Mbps physical layer interface

Preliminary data

PDI1394P25

The sequence of events for a null packet reception is as follows:

• Receive operation initiated. The PHY indicates a receive

operation by asserting receive on the CTL lines. Normally, the

interface is idle when receive is asserted. However, the receive

operation may interrupt a status transfer operation that is in

progress so that the CTL lines may change from status to receive

without an intervening idle.

• Data-on indication. The PHY asserts the data-on indication code

on the D lines for one or more cycles.

• Receive operation terminated. The PHY terminates the receive

operation by asserting Idle on the CTL lines. The PHY shall assert

at least one cycle of Idle following a receive operation.

SYSCLK

CTL0, CTL1

D0–D7

(a)

00

10

00

01

(b)

(c)

XX

FF (“data-on”)

00

SV01761

Figure 17. Null Packet Reception Timing

2001 Sep 06

31

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