U4091BM-N Datasheet, PDF (11/38 Pages) ATMEL Corporation – PROGRAMMABLE TELEPHONE AUDIO PROCESSOR

U4091BM-N
Figure 5. Write Cycle
CLOCK
Write cycle
DATA
D7 D6 D5 D4 D3 D2 D1 D0 A3 A2 A1 A0 R/W=0
Data from µP
Strobe
from µP
Figure 6. Normal Read Cycle
CLOCK
Normal read cycle
DATA
A3 A2 A1 A0 R/W=1
Data from µP
Strobe
from µP
D7 D6 D5 D4 D3 D2 D1 D0
Data from U4091B
Figure 7. Fast Read Cycle
CLOCK
Fast read cycle
DATA
Strobe
from µP
D7=IZC D6=IVE
Data from U4091B
11
4666B–CORD–08/04