Philips Semiconductors
1394 full duplex AV link layer controller
Preliminary specification
PDI1394L21
16.3 PHY-Link Interface Critical Timings
SCLK
PHY D[0:7], PHY CTL[0:1]
50%
tSUP
tHP
50%
tSCLKPER
50%
Figure 28. PHY D[0:7], PHY CTL[0:1] Input Setup and Hold Timing Waveforms
50%
SV00919
SCLK
PHY D[0:7], PHY CTL[0:1], LREQ
50%
tDP
50%
SV00694
Figure 29. PHY D[0:7], PHY CTL[0:1], and LREQ Output-Delay Timing Waveforms
16.4 Host Interface Critical Timings
READ
tAS
tAS
HIF A[8:0]
VALID
tCL
HIF CS_N
tRP
HIF RD_N
HIF D[7:0]
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
tACC
tAH
tAH
tCH
VALID
tDZ
WRITE
HIF WR_N
tWRP
HIF D[7:0]
VALID
tDS
tDH
Figure 30. Host Interface Timing Waveforms
SV00920
1999 Aug 06
47