CMOS 512 × 9 FIFO
TIMING DIAGRAMS (cont’d)
tRT
RT
tRTR
R,W
NOTES:
1. tRTC = tRT + tRTR
2. EF, HF and FF may change state during retransmit, but flags will be valid at tRTC.
Figure 14. Retransmit Timing
LH5496/96H
5496-13
WRITE TO LAST
AVAILABLE
LOCATION
W
R
t XOL
t XOH
READ FROM
LAST VALID
LOCATION
t XOL
t XOH
XO
Figure 15. Expansion Out Timing
5496-15
t XI
t XIR
XI
t XIS
WRITE TO FIRST
AVAILABLE
W
LOCATION
R
t XIS
READ FROM FIRST
VALID
LOCATION
5496-16
Figure 16. Expansion In Timing
11